Fishing Lake Shikotsu: wild trout, native char, and the plan to catch them in clear Hokkaido water

What and where it is

Lake Shikotsu sits in Shikotsu-Toya National Park in south-west Hokkaido, a short drive south of Chitose and New Chitose Airport. It is a deep caldera lake, roughly 40 km around, up to about 360 m deep (Japan's second-deepest lake), famous for water so clear it is called "Shikotsu Blue", and so deep it never freezes fully.

The depth and the clarity are the two things to understand. A caldera that deep holds an enormous body of cold, clean water that turns over slowly and stays cold below the surface all year, which is why the lake never fully ices over and why its trout run wild and strong. The clarity, the celebrated "Shikotsu Blue", is wonderful to fish over and unforgiving in equal measure: you can see deep, and the fish can see you. (Lake facts from GoodLuckTrip and Magical Trip / Hokkaido tourism, as of 5 June 2026.)

It is an easy water to reach for somewhere this wild. New Chitose Airport, the main gateway to Hokkaido, is about forty minutes away by road, and JR Chitose Station is close too, so a visiting angler can land and be on the water the same day. Several lakeside guides run free transfers from the airport or the station (see the guided trips below), which makes this one of the simplest wild-trout lakes in the world to fold into a trip. Most anglers base themselves around Shikotsu Kohan, the small lakeside village on the east shore, where the boats, the tackle and the visitor facilities are.

The Chitose River drains the lake at its northern end and runs down to the town of Chitose. It is itself a noted river for wild trout and for an autumn salmon run, so it is a strong add-on to a lake trip, with one big caveat about the salmon covered below. This is the wild contrast to Japan's stocked Honshu lakes: a clear, cold, scenic caldera with self-sustaining trout, inside a national park, where you tread lightly and the rules protect the breeding fish.

The fish, and where, when and how to catch each

Four fish, all cold-water salmonids. Wild rainbow and brown trout are the all-season targets on the fly or a spinner. The native white-spotted char (iwana) is the Hokkaido local. Himemasu (kokanee, landlocked sockeye) is the prized table fish, on a short summer season and a multi-hook dropper from a boat. Each holds at a different depth and wants a different method. The cards below give you where, when and how for each.

A note on the lake's character. That is the trip: three wild trout-and-char and the himemasu speciality, all cold-water salmonids, no coarse fish to muddy it. The nearby Chitose River adds wild river trout and an autumn salmon run, but the salmon are heavily restricted (see the Chitose River section and the rules below). Treat the river salmon as look-but-do-not-take unless a specific permit allows.

I have set each fish out as a card. Read the one for the fish you want, then check the seasonal section for how its depth and mood move through the year, and follow the rig link to build the method.

How the fishing changes by season

The trout and char fish through the open-water months, with early summer and autumn the picks, because they like the cold water and the low light. The himemasu season is the short summer window, 1 June to 31 August, and is closed the rest of the year for the spawning run. High summer pushes the trout deep and onto dawn and dusk. Plan around the himemasu dates and the breeding closure.

Here is the year in plain terms, tied to the four fish. Hokkaido waters often run a defined season with no fishing in the breeding period, so confirm your dates against the current rules before you book.

• Spring (the cold start). As the open water comes alive, the wild trout and char feed in the cool margins and the inflows. A good early window for rainbows and browns close in, before the surface warms and the crowds of summer arrive. The himemasu season is not yet open.
• Early summer (June into July). The picks for the trout and char in cool water, and the opening of the himemasu season on 1 June. The himemasu schools come within reach of a boat, and the trout still feed well in the margins before the heat. Often the best all-round window of the year.
• High summer (late July into August). Himemasu fishing is on, fished from a boat over the deep water, the speciality of the season. The wild trout and char drop deeper as the surface warms and fish best at first and last light; the bright middle of a clear summer day is the slow patch. The himemasu season closes toward the end of summer to protect the breeding fish.
• Autumn (September into October). A strong second window for the wild trout and char as the water cools and they come back onto the margins. The himemasu are closed now for their late-autumn spawning run, so do not fish for them; this is the trout-and-char window. The Chitose River salmon run is on, but it is heavily restricted (see below).
• Late autumn and winter. The lake never freezes fully, but the season is shaped to protect breeding fish and the weather is hard; plan your trip inside the open windows and confirm what is open with the fee issuer rather than turning up off-season.

What you can eat (and what you must release)

Himemasu and the wild trout are excellent eating, and himemasu in particular is a noted Shikotsu product, kept within the season and the fee's terms. But the himemasu breeding run is closed, so you do not fish the spawning fish, and the Chitose River salmon are heavily restricted, so treat them as look-but-do-not-take unless a specific permit allows. Respect the national-park rules and confirm any size and bag limits with the fee issuer.

A few rules shape what you keep here, and they matter, so be exact.

• Himemasu is the prize for the table, in season only. Shikotsu himemasu (kokanee) is a noted local product and superb eating. You may take it within the short season and the fee's terms, but the season is closed for the late-autumn spawning run, so the breeding fish are off the table entirely. Do not fish the spawning himemasu (source: Hiro & Noki Adventure Tours; Hokkaido fishing guides, as of 5 June 2026).
• The Chitose River salmon are heavily restricted. The autumn salmon (sake) run on the Chitose River is heavily restricted, as salmon are in most Japanese inland waters. Treat the river salmon as look-but-do-not-take unless a specific permit allows it (source: atlas roster; Hokkaido fishing guides, as of 5 June 2026). The river's wild trout are the fish to target there, within the river's own rules.
• The wild trout and char are fine eating within the rules. Rainbow, brown and iwana char are all good on the plate, kept within any size and bag limit the fee issuer sets and the national-park rules. There is a strong case for releasing the bigger wild fish in a clear, self-sustaining lake like this; take a photo and slip the giants back.
• Confirm the size and bag limits and the keep-or-release stance. The cooperative's permit page sets the himemasu fee and season but publishes no per-day size or bag limit; confirm the keep-or-release stance with the cooperative when you buy. Handle fish in wet hands, unhook in the water where you can, and clean and dry all your kit between waters so you carry nothing between catchments.
• Respect the national park. The lake sits in Shikotsu-Toya National Park, so the park's rules apply alongside the fishing fee: stay to permitted areas, take your litter, and tread lightly in a place people visit for more than the fish.

The fishing fee and the rules

Hokkaido has no prefecture-wide angling licence. The wild trout and char (rainbow, brown, iwana) need no fee at all and fish year-round. Only himemasu needs a permit: the Shikotsu Lake Fisheries Cooperative's fee, ¥1,650 for a day, bought online through FISHPASS from 2026, for the 1 June to 31 August season (closed the rest of the year to protect breeding). The other headline rules are the heavily restricted Chitose River salmon and the national-park rules. Sea and most Hokkaido streams differ, so do not generalise.

The one thing to get right about licensing in Japan. Most Japanese lakes and rivers are managed by a local fisheries cooperative (漁協 gyokyo), and you fish on its day-ticket (遊漁券 yuugyoken, a recreational fishing ticket) bought at a convenience store, a tackle shop or online. Hokkaido is different: there is no prefecture-wide angling licence. For Lake Shikotsu the practical reality is narrower than you might expect: only himemasu needs a permit. The Shikotsu Lake Fisheries Cooperative holds the himemasu fishing right and charges a fee for it, tied to the strict season that protects the breeding fish. The wild rainbow trout, brown trout and iwana char need no fee at all and can be fished year round, from the shore or a boat. So you pay the cooperative only if you target himemasu in season; for the trout-and-char trip there is nothing to buy. The sea and most other Hokkaido streams work differently, so do not assume any of this carries beyond the lake (source: Shikotsu Lake Fisheries Cooperative; Hiro & Noki Adventure Tours, "fishing license and rules in Japan", as of 5 June 2026).

The fee and how to get it (figures from the cooperative; re-check the current price and dates before you travel, as of 5 June 2026):

The rules that shape the trip (atlas roster; Hokkaido fishing guides; park authority, as of 5 June 2026):

Why there is no full size-and-bag table here. Unlike a French or German water, Lake Shikotsu runs on the cooperative's himemasu fee, the short 1 June to 31 August season and its breeding closure, the salmon restriction and the national-park rules rather than a published per-fish size-and-quota grid. The cooperative's permit page sets the fee and the season but does not publish a per-day size or bag limit, so pay the fee, fish inside the season, do not touch the spawning himemasu or the river salmon, and confirm any current keep limits with the cooperative when you pay.

Where to fish (shore and boat)

You fish from the shore and from a boat. The shore gives you the wild trout and char along the clear margins, the drop-offs and the inflows, with Shikotsu Kohan on the east shore the natural base. A boat opens up the deep open water, which is where the himemasu live and where the trout drop in the heat. The clear, deep water rewards reading structure and fishing the low-light edges.

The lake drops away fast into a deep caldera, so from the shore you are fishing the margin, the lip of the drop-off and the bays and inflows where food gathers, and from a boat you reach the open water and the depth the himemasu and the summer trout hold at.

From the shore

• Shikotsu Kohan (the lakeside village, east shore). The natural base, with the visitor facilities, the tackle and the boats, and shore access close by. The simplest first stop, and where the guides and transfers run from.
• The clear margins and drop-offs. Along the shore the bottom falls away quickly into the deep, clear water, so the productive shore fishing is the margin and the lip of the drop-off where the wild trout and char patrol.
• The inflows and the lake outlet (toward the Chitose River). Where moving water brings food in, the trout and char hold and feed. The outlet area, where the Chitose River leaves the lake at the north, is a known holding spot (mind the river's own salmon restrictions downstream).

What depth and structure mean for method from the shore

• Shallow clear margins and bays (a rod-length or two out): rising char and cruising trout at first and last light. A dry-fly rig for the risers; a streamer rig cast and stripped along the edge for a hunting trout; a small spoon or spinner for the spin angler.
• The drop-off, where the margin falls into the deep (within a cast): the productive seam. Trout and char hold along it. A nymph rig fished slow and deep along the lip, or a spoon worked down the face.
• Off the points and into the clear deeps (boat country): the himemasu schools and the summer trout. A boat and a multi-hook dropper for himemasu, or trolling spoons for the trout (see shore vs boat below).

A note on the water itself: the clarity, the "Shikotsu Blue", means the fish see you as easily as you see them, so keep low, keep back from the edge, and fish the low-light edges of the day where you can.

Shore vs boat, and the time of day

From the shore, target the wild rainbows, browns and char along the clear margins and drop-offs at first and last light, on the fly or a spinner. From a boat you add the himemasu over the deep water in their short summer season, and you reach the trout when they drop in the heat. The bright middle of a clear day is usually slow either way; fish the low-light edges.

Plain version: if you only have the shore, fish the wild trout and char at dawn and dusk along the clear margins and the drop-offs, on a fly or a spinner, in early summer and autumn. With a boat you keep all of that and add the himemasu over the deep water in their short June-to-August season, plus the trout when the summer heat sends them down. The clarity is the constant: keep low, keep back, and fish the low-light edges.

This table is the core decision the trip turns on. It lives on the cheat sheet too. Read it as: pick your fish, pick where you are and when, and it gives you the rig.

Guided trips, and getting on the water

Because the lake is forty minutes from a major international airport, the simplest way to fish it well is a guided trip from the lakeside, and several operators run free transfers from New Chitose Airport or JR Chitose Station with rental tackle included. They supply the boat for the himemasu and the deep-water trout, know the marks, and read the clear water for you. Self-guided shore fishing with the local fee is the alternative.

Two ways to fish it:

Guided (recommended for a first visit)

Lakeside operators near Chitose run guided trout (and seasonal himemasu) trips with rental tackle and free transfers from JR Chitose Station and New Chitose Airport, which makes this an unusually easy wild-trout lake to reach. They arrange the boat and usually the fishing fee, so check what is included. Book directly:

• Lake Shikotsu trout-fishing experiences are listed on Activity Japan and NAVITIME Travel, the booking platforms the atlas names; book the lakeside trout-fishing experience there, which includes rental tackle and the airport / station transfer (confirm the current rate, what is included and the himemasu availability when you book).
• Hokkaido fly and lure guides also run Lake Shikotsu and the nearby Chitose River; for the rules-and-licence background and trout trips the atlas points to Hiro & Noki Adventure Tours (hiromarusasazaki.wordpress.com).

Self-guided

Fish the shore margins and drop-offs for the wild trout and char on the fly or a spinner, which needs no fee at all, any time of year. If you want himemasu, buy the cooperative's permit through FISHPASS online and fish it inside the 1 June to 31 August season, ideally from a boat. You need no national card; just your fly or light spin kit, careful wading in the clarity, and a check of the himemasu season and the park rules.

The Chitose River, a strong add-on

The Chitose River drains the lake at its northern end and runs down to Chitose, and it is a noted river for wild trout and an autumn salmon run, so it is a strong add-on to a lake day. Fish it for wild river trout within the river's own rules, but treat the salmon as look-but-do-not-take: the autumn salmon run is heavily restricted, like salmon in most Japanese inland waters.

The river leaves the lake at the north and is close to Chitose and the airport, so it folds neatly into a Shikotsu trip, especially when the lake is bright in the middle of the day and the river holds fish in moving, shaded water. Two things to know:

• The wild trout are the target. The Chitose River holds wild river trout, fished on the same fly and light-spin kit as the lake. Confirm the river's own fee or permit and rules (it may be managed separately from the lake) before you fish it.
• The salmon are restricted. The Chitose River has a famous autumn salmon run (the Chitose Salmon Aquarium and the indiansuisha fish weir on the river are local landmarks of it), but the salmon are heavily restricted, as salmon are across most of inland Japan. Treat them as look-but-do-not-take unless a specific permit allows. Go to watch the run; do not plan to take a salmon (source: atlas roster; Hokkaido fishing guides, as of 5 June 2026).

Where to stay

To wake up by the fishing, stay at Shikotsu Kohan, the small lakeside village on the east shore, which has lakeside accommodation and is where the boats and tackle are. Otherwise base yourself in Chitose, near the airport and the JR station, with the lake forty minutes away and the guides' free transfers running from there. The trout and char need no fee; if you want himemasu, buy the cooperative's permit online before you go.

Stay by the lake (to fish the light). Shikotsu Kohan, the lakeside village, has hotels and lodging on the water, so you can be on the margins at first and last light without the drive, and it is where the fee station, the boats and the tackle are. The natural choice if the fishing is the trip.

Base in Chitose (the convenient choice). Chitose, by New Chitose Airport and JR Chitose Station, has the full range of accommodation and is where the guided trips pick you up on their free transfers. For a single guided day folded into a Hokkaido itinerary, this is the simplest base, with the lake about forty minutes away.

The fee point. Whatever your base, the wild trout and char need no fee. If you want himemasu, buy the cooperative's permit through FISHPASS online before you fish (or arrange it through your guide), and fish inside the 1 June to 31 August season.

The methods, and the rigs to build them

Fly fishing and light-lure fishing are the methods here. Three fly setups cover the wild trout and char: a streamer for the predators, a nymph for fish feeding below the surface, and a dry fly for risers. Spoons and spinners on a light spin outfit are the simple alternative. For himemasu, a multi-hook dropper from a boat is the season's speciality. Each links to its own build page; the build steps and knots live there.

Map of fish, where and when, to a method. The build instructions and the knots live on the rig and knot pages, so I link rather than repeat them.

• Wild trout hunting the margins → streamer rig. A streamer that imitates a baitfish, cast along the clear edge or off the points and stripped back. The method for the predatory rainbows and browns, in the cold shoulders of the season.
• Trout and char feeding below the surface → nymph rig. A weighted nymph fished slow and deep along the drop-off lip, where the fish hold and feed most of the time in clear, deep water.
• Rising char and trout in the margins → dry-fly rig. A small dry fly to fish working the surface, the free-rising side of this fishery on a calm summer evening.
• Trout and char on a lure → spoons and spinners on the light spin kit. When the fly is not the day's tool, a small spoon or spinner on a light spinning outfit takes the wild trout and char from the shore or a boat, and is the simplest way in for a visitor. Spoon trolling at depth also takes summer trout from a boat.
• Himemasu over the deep water, June to August → wakasagi-style multi-hook dropper. A short string of small hooks on droppers under a small weight, lowered to the school from a boat and worked gently: the wakasagi smelt rig scaled up to the fish, and a close cousin of the gambe / sabiki. Trolling spoons at the school's depth is the alternative.

The knots that tie the fly rigs are the perfection loop (the leader loop, to join leader to fly line loop-to-loop), the surgeon's knot and the blood knot (the leader-to-tippet joins the brief calls for), and the improved clinch knot (tippet to fly). For the light spin option, the Palomar ties a spoon or spinner on. The himemasu dropper uses the dropper loop. Each rig page links the knots it needs.

Build your kit (the kit builder and the shopping list)

Pick your fish (wild trout and char, or himemasu) and your method (fly, light spin, or the himemasu dropper), and the kit builder trims the shopping list and the rigs to exactly what you need. One fly outfit, a wallet of leaders and tippet, and a box of streamers, nymphs and small dries cover the wild fish; a light spin outfit with a few spoons is the simple alternative; a ready-made dropper string is the himemasu add-on. No brands, no prices.

That is the whole list. One fly outfit, a floating line and a sink-tip, a wallet of leaders and tippet, and a box split into streamers, nymphs and small dries. Add a light spin rod and a few spoons for the simple lure option, and a soft boat rod with a ready-made dropper string only if you take the himemasu in season. Buy generic sizes and types; you do not need a named brand to catch a wild Shikotsu rainbow.

A trip checklist

Before you go: check your dates against the himemasu window if that is your fish (the trout and char fish year-round, no fee), buy the cooperative's himemasu permit online if you want it, decide shore or boat and book the guide if you want the himemasu or deep-water trout, pack the fly kit (and a light spin outfit, plus a dropper string for himemasu), know the salmon and national-park rules, and clean your gear. Then print the cheat sheet and take it.

Do this in order:

1. Check your dates against the season. The wild trout and char fish year round, best in early summer and autumn. The himemasu season runs 1 June to 31 August, closed the rest of the year for the spawning run. Re-check the exact himemasu dates with the cooperative before you book.
2. Buy the himemasu permit if you want it. There is no national card and the trout and char need no fee. For himemasu, buy the cooperative's permit (¥1,650 a day, ¥28,600 a season) through FISHPASS online, or let your guide arrange it. Confirm any size or bag limits when you buy.
3. Decide shore or boat, and book it. Shore only: fish the wild trout and char on the fly or a spinner along the clear margins at dawn and dusk. Want himemasu or the deep-water trout: book a guided trip from the lakeside (with the free airport / station transfer, via Activity Japan or NAVITIME) for the boat and the marks.
4. Pack the fly kit. A 5 – 7 weight outfit, a floating line and a sink-tip, leaders, tippet, and a box of streamers, nymphs and small dries, plus waders, polarised glasses, warm layers and a net. Add a light spin rod and spoons for the lure option, and a dropper string and a soft boat rod for himemasu in season. The shopping list above (trimmed by the kit builder) is your packing list.
5. Know the rules. Do not fish the spawning himemasu (the season is closed for the breeding run). Treat the Chitose River salmon as look-but-do-not-take. Respect the Shikotsu-Toya National Park rules. Wet hands, careful release of the bigger wild fish.
6. Clean and dry your gear before and after, so you carry nothing between waters.
7. Print the cheat sheet and fold it into the box. Get the printable cheat sheet

Common mistakes

The big ones: turning up for himemasu outside its 1 June to 31 August season or fishing the spawning run, expecting to bring a national licence (Hokkaido has none, and the trout and char need no fee), planning to take a Chitose River salmon (heavily restricted), fishing only the bright middle of a clear day, and spooking fish in the famous clarity. None is hard to avoid once you know.

• Fishing himemasu off-season or on the spawning run. The himemasu season runs 1 June to 31 August and is closed the rest of the year for the breeding run. Turn up in autumn for himemasu and you cannot fish for them; the spawning fish are protected. Re-check the exact dates with the cooperative.
• Expecting a national licence, or paying when you do not need to. Hokkaido has no prefecture-wide angling licence, and the wild trout and char need no fee at all. Only himemasu is paid (the cooperative's permit via FISHPASS). Do not arrive expecting to buy a national card or assume sea-fishing rules apply here.
• Planning to take a salmon from the Chitose River. The river's autumn salmon run is heavily restricted. Go to watch it; do not plan to take a salmon. The river's wild trout are the fish to target there, within its own rules.
• Fishing the bright middle of the day. This is gin-clear, deep, cold water. The wild trout come best at first and last light, and in early summer and autumn. Fish the low-light edges and rest in the bright hours.
• Spooking fish in the clarity. "Shikotsu Blue" means you can see the fish, which means they can see you. Keep low, keep back from the edge, watch your shadow and the sun.
• Underdressing for the cold water. Hokkaido water is cold even in summer, and the lake never fully freezes because it is so deep. Bring waders and warm layers; the clear cold is the point, not a surprise.
• Not cleaning your kit. Clean and dry your waders, net and flies between waters so you carry nothing between catchments, and tread lightly in the national park.

Frequently asked questions

The questions travelling anglers ask most about Lake Shikotsu: what is here, the fee and the Hokkaido no-licence point, the himemasu season, when to go for the trout, shore versus boat, the airport transfer, what you can eat, the method, the kit, and the national-park rule.