Fishing Lough Corrib: the wild trout, the mayfly, the pike, and the plan to catch them

What and where it is

Lough Corrib lies in County Galway, in the west of Ireland, running north from Galway city toward Cong and Connemara. It is the Republic's largest lake by area: about 176 km² of water, 48 km long, mostly shallow over a limestone bed, studded with islands and reefs. That rich, shallow limestone water is what grows its wild brown trout.

It is a natural lake, and a big one: roughly 176 km² across, around 48 km top to bottom, with much of it under 10 m deep and a scatter of deeper holes (figures from the roster brief and Inland Fisheries Ireland). The character is the thing to grasp before you go. Corrib is not one open sheet of water. It is a maze of bays, drowned reefs, shoals and hundreds of islands, and the trout follow the food over that structure. The limestone makes it alkaline and food-rich, which is why the fly hatches (the duck-fly, the olives and, above all, the mayfly) are so heavy and why the trout fishing is built around them.

The lake splits, roughly, into an upper and a lower part either side of the narrows. Oughterard, on the western shore, is the traditional trout base and the easiest first visit. The lower lake toward Galway holds the salmon run in season. Other long-established angling centres ring the shore: Cong and Cornamona at the north, Headford, Knockferry, Annaghdown and Greenfields on the eastern side (source: fishinginireland.info).

The size and the reefs are why this is boat water. You can fish marks from the shore, but the lake rewards a boat and someone who knows the drifts, and that is the trip most visiting anglers should plan for. Galway city, twenty minutes from the lower lake, is the nearest base for flights, trains and supplies.

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

Wild brown trout are the headline, fished from a boat to the fly: wet-fly teams on a drift, the dapped mayfly in late spring, the dry fly to a rising fish. Big pike hold in the weedy bays (Annaghdown is the known mark). Perch and roach are everywhere, and the lower lake sees salmon in season. Each fish wants a different method.

Others, for context. The lake also holds roach (now widespread, and useful bait), eels, and the odd char in the deeps. Most visiting anglers come for the trout and the mayfly, with pike as the second string, so the cards above are the trip.

I have set each fish out as a card. Read the one you are after, check the seasonal section for when it is on, and follow the rig link to build the method.

How the fishing changes by season

February to April is wet-fly and the duck-fly on cold, big-water days. Early May to early June is the mayfly, the peak, when the dap comes into its own. Summer is olives and sedges, fished early and late. September is a strong late wet-fly window before the trout season shuts on 30 September. Pike fish best autumn to spring.

Here is the year in plain terms.

• Early season (15 February to April). The trout season opens on 15 February. Cold, often windy, big-water fishing: a team of wet flies on a drift, and the duck-fly (a large midge) hatch on milder days. Fish are spread and you cover water. Pike are feeding well in the cold.
• The mayfly (about 5 May to early June). The reason people travel to Corrib. The mayfly comes off in clouds and the trout, including bigger fish, feed hard on the surface. Dapping a natural or artificial mayfly on a long rod in a breeze is the method of the moment, and the dry fly takes rising fish. A few magic weeks; book ahead. (Source: Camillaun Lodge.)
• Summer (mid June to August). The mayfly tails off into olives, sedges and other hatches. The fishing settles down, best in the early morning and the evening rise, with wet-fly teams and dries to a hatch. Perch are easy through the day; pike fishing is quieter in the warm water.
• Late season (September). A good final window. Trout feed up before the close, and the wet fly fishes well on a fresh breeze. The trout season closes on 30 September.
• Autumn and winter (October to January). No trout fishing, but this is prime pike time: the bays fish well on lure and deadbait as the pike feed through the cold. Perch keep going on milder days.

What you can eat (and what you must release)

You may keep wild brown trout within the Corrib byelaw: 4 trout a day, no more than one of them over 10 lb (4.5 kg), and none under 33 cm (13 in). For pike, the national rule lets you keep one pike a day and only if it is under 50 cm; bigger pike go back. Many anglers release Corrib trout and pike anyway, to keep the fishery wild.

This matters, so the exact figures are in the licence and rules table below. The headline: Corrib trout are a genuinely wild stock, so restraint is the local norm, and a lot of regular anglers practise catch and release on both trout and pike even where the byelaw allows a kill. (Source: Inland Fisheries Ireland byelaws and the national pike bye-law.)

• Brown trout: fine to eat within the byelaw (4/day, max one over 10 lb, 33 cm minimum). A wild Corrib trout is good eating, but most anglers keep one or two at most.
• Pike: the national pike bye-law (Bye-law 809) limits you to one pike a day, and only a pike under 50 cm may be kept; every pike over 50 cm must be returned safely. Most pike anglers release the lot, including the big ones.
• Perch and roach: no licence and no specific bag limit; keep a few perch for the pan if you like, or use roach as bait.
• Salmon: governed by the salmon licence, tags and the annual regulations (catch-and-release rules apply on many systems). Check the current rules before you keep one.

Whatever you keep, check the size and bag limits and any closed season before you keep a fish, and clean and dry your kit between waters so you don't carry anything (including invasive species) from one lake to the next. Corrib has its own invasive-species concerns, so this one genuinely matters here.

Licence and rules

Fishing Lough Corrib for trout, pike, perch and roach is free, with no state licence and no permit. That is unusual and worth saying plainly. The only exception is salmon: targeting salmon needs a state salmon licence (€100 a year for all districts, €10 juvenile for 2026, from Inland Fisheries Ireland). Byelaws set the trout bag and size and the pike kill rule.

What is free, and what is not. In the Republic of Ireland, no state licence is required to fish for brown trout, pike, perch or other coarse fish. Angling on Lough Corrib itself is free: no permit, no club ticket for the open lake. A state salmon licence is the one thing you must buy, and only if you fish for salmon or sea trout. (Source: Citizens Information and Inland Fisheries Ireland.)

Salmon licence prices (Ireland, via Inland Fisheries Ireland, as of 5 June 2026). Needed only if you target salmon:

Buy a salmon licence online at the IFI permit shop or from an approved local agent, and carry it with the gill tags while you fish.

Trout and pike byelaws (source: Inland Fisheries Ireland and fishinginireland.info):

• Trout: the byelaw allows four a day, but only one of them may be a fish over 10 lb (4.5 kg), and none under 33 cm. Restraint is the local norm on this wild fishery.
• Pike: the national bye-law means you keep at most one pike a day and only a small one (under 50 cm). Every bigger pike goes back. Most anglers release all of them.
• Salmon: the licence, the tags and the catch-and-release rules vary by system and year. Read the current salmon regulations before you fish for them.

Other rules that matter

• Clean and dry your kit between waters so you don't move invasive species or disease into or out of the Corrib catchment.
• No permit for the open lake for trout, pike or coarse fish, so you can just fish (the salmon fisheries and some private banks are the exception).
• Buy a salmon licence only at the IFI permit shop or an approved agent.

Where to fish

Corrib is boat water. From a boat you drift the shallow shoals, reefs and windward shores for trout, and work the weedy bays for pike. From the shore you can fish the harbours, quays and reed margins for perch and pike. The main angling centres, each with quays, slipways and boat hire, are Oughterard, Cong, Cornamona, Headford, Knockferry, Annaghdown and Greenfields.

The lake is too big and too reefy to fish blind, so the access points double as launch and hire points. These are the established centres (source: fishinginireland.info):

• Oughterard (western shore). The traditional trout base, with lodges, boat hire, gillies and tackle. The easiest first visit, with direct access to the famous upper-lake drifts. The Owenriff river runs down to the lake here.
• Cong and Cornamona (north). The quieter northern end, near Connemara, with quays and slipways and good trout shoals.
• Headford, Knockferry, Annaghdown and Greenfields (eastern shore). Public quays, car parks and slipways. Annaghdown Bay is the known pike mark. Greenfields is a handy launch for the lower lake.
• The lower lake toward Galway. The salmon end, a short run from Galway city.

What the water tells you about method

• Shallow limestone shoals and reefs (a metre or two over the rock): the trout drifts. Drop the boat upwind and drift across the shoal, casting a wet-fly team or dapping the mayfly. This is the heart of Corrib trout fishing.
• Windward shores and the food lanes: where the breeze pushes the fly life in, the trout follow. Drift the windward bank rather than the calm side.
• Weedy bays and reed margins (shallow, sheltered): pike country. Work a big lure or a deadbait along the weed edges. From the bank, fish the reedy margins and quays for pike and perch.
• Harbours, quays and the river mouths: the bank fishing, mostly perch and pike, and the place to start if you have no boat.

From the shore alone, Corrib is a perch-and-pike trip around the margins and quays. The trout fishing, and the mayfly, really need a boat.

Bank vs boat, and the time of day

From a boat you get the lot: drift the shoals and windward shores for trout on wet fly, dap or dry fly, and work the weedy bays for pike. From the shore you can take pike and perch off the quays, reed margins and bays. Trout fish best in a good breeze (a flat calm is hard); pike and perch are most reliable early and late.

Plain version: if you only have the shore, this is a pike-and-perch trip around the quays and the bays, and you can have a good day at it, especially for pike in autumn. For the trout (and the mayfly, the reason most people come), get on a boat and, for a first visit, take a gillie. A trout ripple beats a flat calm; the dead-still bright day is the hard one.

This table is the core decision the trip turns on, and it lives on the cheat sheet too. Pick your fish, pick where you are, and it gives you the method and the rig.

The boat and the gillie

A boat is how you fish Corrib for trout, and a gillie (the local boatman and guide) is the single best thing you can book for a first visit: they supply the boat, know the drifts and the reefs, and put you on the mayfly. Boats with outboards hire from the lakeside lodges and centres. Rates are set by each operator, so book directly through the links below.

A boat with someone who knows the lake turns Corrib from a daunting maze into a day's fishing. The lake is full of unmarked reefs, so a local boatman is as much about safety as fishing, and Corrib can get rough quickly in a big wind. Watch the weather, wear a lifejacket, and keep to the navigation marks.

Hire a boat and a gillie (the recommended first visit)

These lakeside operators around Oughterard hire boats with outboards and can arrange a gillie; book directly:

• Camillaun Lodge, Oughterard – boats and outboards for hire, rod and fly hire, a fly-tying desk, and gillies arranged; a personal guide is about €150 a day (advance booking). camillaun.com.
• Currarevagh House, Oughterard – a country house on the shore with traditional clinker boats for guests; outboards about €80 a day including fuel, and fishing arranged from a few hours to a full holiday. currarevagh.com.
• Baurisheen Boat Hire, Oughterard – boat hire with outboards from its own jetty (listed on fishinginireland.info).
• Birchall Lodge, on the lake – accommodation with boat hire and angling. birchallonloughcorrib.com.
• More boat-hire and gillie listings, around the whole lake, are on the official IFI boat-hire directory for Corrib.

Launch your own

There are public slipways and quays at the main centres (Oughterard, Cong, Cornamona, Headford, Knockferry, Annaghdown, Greenfields). If you bring your own boat, take local advice on the reefs first, or follow a known boat out. The lake is free to fish, but launch and parking arrangements vary by quay.

Where to stay (near the fishing)

To stay on the water, the Oughterard lodges are built for it: Camillaun Lodge and Currarevagh House both sit on the shore with their own boats, and Birchall Lodge offers accommodation with boat hire. Galway city is a twenty-minute drive from the lower lake if you want a town base, with the angling centres (Cong, Headford, Annaghdown) for the other ends of the lake.

Stay on the shore

• Camillaun Lodge, Oughterard – a guest house and angling centre on the western shore, with boats, outboards, rod and fly hire, gillies and a fly-tying desk, so you can stay, hire and fish in one place. camillaun.com.
• Currarevagh House, Oughterard – a country house with direct access to the lake, its own clinker boats and outboards, and fishing arranged for novices through to experienced anglers. currarevagh.com.
• Birchall Lodge – accommodation with boat hire and angling on the lake. birchallonloughcorrib.com.

Town and other ends: Galway city for the lower lake, flights and supplies; the centres at Cong, Cornamona, Headford and Annaghdown for the northern and eastern shores. The mayfly weeks (early May to early June) book up early, so reserve a lodge and a boat well ahead.

The methods, and the rigs to build them

Trout fishing here is fly fishing: a wet-fly team on a drift, the dapped mayfly in late spring, and the dry fly to a rising fish, all from a boat. Pike take a lure or a deadbait on a trace. Perch take a small soft lure on a drop shot or a worm under a float. Each method links to its own build page; the knots are on those pages.

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

• Brown trout on a wet-fly team, drifting → nymph / wet-fly rig. The everyday Corrib method: a leader carrying two or three wet flies on droppers, cast across the drift and worked back as the boat moves. The fly page covers the leader, the dropper spacing and the flies; match the hatch (duck-fly early, olives and sedges through summer).
• Brown trout on the mayfly and the dry fly → dry fly rig. From early May, dap a natural or a big bushy artificial mayfly: a long rod and a light floss line let the fly dance on the surface in the breeze. The same tackle takes a single dry fly to a fish you can see rising. The dry-fly page covers the fly, the tippet and the presentation.
• Pike, bank or boat → pike rig. A wire or heavy fluorocarbon trace, then either a big soft shad or spoon (lure version) or a roach deadbait under a float or ledgered (bait version). The trace is the one non-negotiable, because pike teeth cut a light leader. Work the weedy bays.
• Perch, bank or boat → drop shot. A small soft lure hovering just off the bottom, worked along the margins and drop-offs; or simply a worm under a float. The easy fish, and good for a family session or for catching pike bait.
• Salmon, lower lake → trolling or fly with a gillie. The salmon method is best learned on the water with a local; book a guided day (a trolling rig page is not yet built).

The knots these rigs use are on each rig page: the fly rigs use the improved clinch, the surgeon's knot, the blood knot and the perfection loop; the pike rig and drop shot link the knots they need from their own pages.

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

Pick your fish and whether you are on the boat or the shore, and the kit builder trims the shopping list and the rigs to exactly what you need. Trout want a fly outfit (and a long dapping rod for the mayfly); pike and perch share one spinning outfit and a small box of terminals. The full list is below, grouped, with no brands and no prices.

That is the whole list. For trout: a #6 – #7 fly outfit, a box of wet and dry flies, and a long dapping rod for the mayfly weeks. For pike and perch: one spinning outfit, a wire trace, and a small box of jigheads, hooks, weights, floats and soft lures. Buy generic sizes and patterns; you don't need a named brand to catch a Corrib trout.

A trip checklist

Before you go: check your dates against the trout season and the mayfly, book a boat and a gillie (the mayfly weeks fill up early), pack the fly outfit for trout or the spinning outfit for pike, note the byelaws, and buy a salmon licence only if you will fish for salmon. Then print the cheat sheet and take it with you.

Do this in order:

1. Check your dates. The trout season runs 15 February to 30 September; the mayfly (about 5 May to early June) is the peak. Pike fish all year, best autumn to spring. The "what's on" strip above maps it.
2. Book a boat and a gillie. For trout, this is the single best thing you can do, especially for a first visit and for the mayfly. Book directly (Camillaun Lodge, Currarevagh House, Baurisheen, or the IFI boat-hire directory). Reserve early for the mayfly weeks.
3. Sort the licence (only for salmon). Trout, pike and perch are free, no permit. If you will fish for salmon, buy a salmon licence at the IFI permit shop (€100 a year for 2026) and carry the tags.
4. Pack the right kit. Trout: a #6 – #7 fly outfit, wet and dry flies, and a long dapping rod for the mayfly. Pike and perch: one spinning outfit, a wire trace, and a box of terminals and soft lures. The shopping list above (trimmed by the kit builder) is your packing list. Add a lifejacket and warm waterproofs.
5. Note the byelaws. Trout: 4 a day, max one over 10 lb (4.5 kg), none under 33 cm. Pike: one a day and only under 50 cm; release the rest. Clean and dry your kit between waters.
6. Print the cheat sheet and fold it into the bag. Get the printable cheat sheet

Common mistakes

The big ones: fishing Corrib without a boat and wondering why the trout never come, missing the mayfly by a week, fishing a flat calm, not booking a gillie for a first visit, going too light for pike, and assuming a salmon needs the same free fishing as the trout. None is hard to avoid once you know.

• Trying to fish the trout from the shore. Corrib is a boat lake for trout. From the bank you'll get perch and pike, which can be a good day, but the trout (and the mayfly) want a drifting boat. Plan for a boat.
• Missing the mayfly window. The mayfly is a few weeks, roughly 5 May into early June, and it varies year to year with the weather. If the mayfly is the trip, book flexibly and ask the lodge when it is coming off.
• Fishing a flat calm. Corrib trout fish best on a "trout ripple", a fresh breeze that puts a wave on. A dead-still, bright day is the hard one. Pick your drift to the wind.
• Not booking a gillie for a first visit. The lake is a maze of unmarked reefs. A local boatman is safety as much as fishing, and they put you on the productive drifts straight away. Worth it for a first trip.
• Going too light for pike. Corrib grows big pike, over 30 lb in the bays. Use a proper trace (wire or heavy fluorocarbon), strong hooks and an unhooking mat and forceps. A light trout leader is cut in one bite.
• Assuming salmon are free too. Trout, pike and perch are free, but salmon need a state licence and tags. Sort that separately if salmon are on your list.
• Ignoring the weather. Corrib turns rough fast in a big wind. Check the forecast, wear a lifejacket, and don't push out in conditions you can't handle.

Frequently asked questions

The questions travelling anglers ask most about Lough Corrib: what is here, whether you need a licence, the cost, the trout season and the mayfly, bank versus boat, the gillie, the bag and size limits, the pike spots, getting on the water, and the kit.