Fishing the Florida Keys flats: the fish, the seasons, and the plan to catch them

What and where it is

The Keys flats are the shallow grass and sand banks either side of the island chain: Florida Bay and the backcountry on the Gulf side, the ocean-side flats and channels on the Atlantic side. You fish them from a poled skiff in water often less than a metre deep. Islamorada is the historic centre of it.

Islamorada is a village of islands in the Upper Keys, about 130 km (80 miles) south of Miami on the Overseas Highway, roughly two hours' drive from Miami International. To the Gulf side lie the vast, sheltered flats of Florida Bay and the backcountry that runs up toward Everglades National Park; to the Atlantic side lie the ocean-side flats, the channels between the islands, and the patch reefs beyond. The flats themselves are shallow banks of turtle grass and sand, much of the productive water under a metre deep, fished from a skiff a guide poles silently across.

This is sight-fishing, which sets it apart from everything else in this atlas. You do not cast blind and wait. The guide poles the boat, you both watch the water, and when a fish or a school appears you make the cast to it, ahead of where it is moving, and work the fly or bait into its path. It rewards good eyes, a quick accurate cast and calm nerves more than heavy tackle, and a poor cast or a clumsy approach spooks the fish off the flat. Done well it is the most visual fishing there is.

Islamorada calls itself the sport-fishing capital of the world, and for the flats that is close to fair: it has the densest concentration of flats guides anywhere, and the area held the fly-caught bonefish record for years. The weather and the wind run the day. A flat is only fishable when you can see into it, so a flat calm bright morning is gold and a grey blown-out afternoon is hard. Plan around the guide and the forecast, not the calendar alone.

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

Tarpon, bonefish and permit are the three to plan a trip around, the grand slam of the flats. Tarpon are the leaping giants of spring, bonefish the fast grey shoal fish of the warm months, permit the hardest of the three. Redfish, snook and barracuda share the same flats. The cards below give you where, when and how for each.

Others, for context. The same flats and edges give up redfish and snook on the same casts and baits, and barracuda, which take a fast-stripped fly or a tube lure and give a savage take. They are not the reason most anglers fly to Islamorada, but they fill a slow tide and a flat day, and the three cards above are the trip.

Each species is set out as a card. Read the one for the fish you want, then check the seasonal section for when its window opens, and follow the rig link to build the method. Almost everyone fishes here with a guide, so the guide supplies the tackle and often the flies, but the cards still tell you what catches each fish so you know what you are doing on the bow.

How the fishing changes by season

Spring is the tarpon trip, when the migrating fish run the flats and the channels, best in May and early June. Bonefish run right through the warm months, March to October. Permit are caught year-round but are strongest August to October, and closed in the Keys from 1 April to 31 July. So pick your fish, then pick your month.

Here is the year in plain terms, tied to the fish from the cards above.

• Spring (April to June): the tarpon trip. The migrating tarpon run peaks April to July, and the sight-fishing is at its best in May and early June, when big fish travel the ocean-side flats and the channels and you can see and cast to them. Bonefish are on through spring in the backcountry. Permit are closed in the Keys from 1 April, so spring is not the permit window. This is the headline trip for most fly anglers.
• High summer (July and August): bonefish and the start of permit. Bonefish are on the ocean-side flats on the summer tides. The tarpon run tails off through July. Permit reopen in the Keys on 1 August and start to fish well as the late-summer window opens. Hot, often calm early, with afternoon storms to watch.
• Late summer and autumn (August to October): the permit trip. Permit are strongest August to October after their summer spawn, the best window to plan around them, with bonefish still on through October. This is the late-season grand-slam window if you want all three in play.
• Winter (November to March): bonefish and weather. Bonefish thin out as the water cools and cold fronts blow through; a settled warm spell still fishes. Tarpon are mostly resident backcountry fish until the spring run rebuilds. Winter is the quietest of the flats seasons, run by the fronts and the wind.

What you can keep, and what you must release

This is a release fishery for the three you came for. Tarpon and bonefish are catch-and-release only statewide. Permit is released as the norm and is closed in the Keys Special Permit Zone from 1 April to 31 July. Keep the fish in the water, support it, and revive it before you let it go. Handle them as little as you can.

This matters, so it is worth being exact. The rules below come from the FWC saltwater regulations (as of 5 June 2026).

• Tarpon. Catch-and-release only. The single exception is a fish kept in pursuit of a Florida state or world record, which needs a tarpon tag ($51.50, one per person per year, sold at tax collector's offices only, FWC), so in practice every tarpon caught here is released. The fish must stay in the water and be released near where it was caught.
• Bonefish. Catch-and-release only, statewide. It goes back, every time.
• Permit. Release is the norm on the flats, and the whole area sits inside the Keys Special Permit Zone, where permit fishing is closed 1 April to 31 July for the spawn and reopens 1 August. There are size and bag limits and a special zone rule the rest of the year; treat it as a release fishery and read the current FWC permit rule before you keep one.

So the three flagship flats fish are a sport-and-release trip: the prize is the eat, the jump and the run, then the fish swims off. If you want fish for the table, the redfish, snook and the reef and channel species are the ones to keep, within their own FWC size limits, bag limits and seasons (some, like snook, have their own closed seasons), so check those before you keep one. Whatever you do, keep the fish in the water, wet your hands, support it under the belly, and revive it head-into-the-current before you let go.

Licence and rules

Yes, you need a Florida saltwater fishing licence, unless you book a licensed charter guide, which covers your licence for the trip. That is how almost everyone fishes the flats here. If you fish without a guide, a non-resident annual saltwater licence is $47 for 2026, with 3-day ($17) and 7-day ($30) cards also available. Tarpon and bonefish are release-only; permit has a closed season.

The simplest route: book a guide. A licensed charter captain's vessel licence covers everyone fishing aboard, so when you book a flats guide you do not need to buy your own licence for that day. Almost everyone fishes the Keys flats with a guide, so for most visitors this is the whole licence question answered. Confirm it is included when you book.

If you fish without a guide, you need a Florida saltwater recreational fishing licence. All three non-resident licences (3-day, 7-day and annual) are sold online at gooutdoorsflorida.com or via the Fish|Hunt Florida app, and in person at retailers such as Walmart, Bass Pro, tackle shops and county tax collectors. (Short-term cards were briefly in-person only after a late-2025 rule change; the FWC restored online sales of the 3- and 7-day licences on 21 May 2026.)

2026 non-resident saltwater licence prices (FWC, via myfwc.com and gooutdoorsflorida.com, as of 5 June 2026):

The conservation rules that define this fishery (source: FWC saltwater regulations, as of 5 June 2026):

Other rules that matter

• Keep flats fish in the water. Tarpon must be released near where they were hooked and stay in the water; the same care applies to bonefish and permit. Wet hands, support the fish, revive it before release.
• Snook needs its own permit and has closed seasons if you intend to keep one; check the current FWC rule.
• The whole area is the Special Permit Zone, so the permit closed season applies here even though permit are "caught year-round".

Where you fish (the flats, the channels and the backcountry)

You fish three kinds of water from the skiff: the shallow ocean-side and backcountry flats where bonefish and permit tail, the channels and edges between the islands where tarpon travel, and the deeper edges and patch reefs nearby. The guide chooses the flat to suit the tide, the wind and the fish, because a flat only fishes on the right water.

There is no bank fishing to speak of here. The flats are reached by boat, and the productive water is the skinny grass and sand the skiff is poled across. These are the kinds of water the guide works:

• The ocean-side flats (Atlantic side). Shallow sand and grass banks where bonefish and permit tail and cruise, and where you make most of your sight-casts. Best fished on a rising or falling tide that brings fish onto the flat, in light you can see into.
• The backcountry and Florida Bay (Gulf side). The sheltered maze of flats, channels and basins running up toward the Everglades. The place to fish when the ocean side is blown out, and a stronghold for resident tarpon, redfish and snook.
• The channels, edges and bridges. The deeper cuts between the islands and around the bridges, where migrating tarpon travel in spring. You intercept and cast to moving fish rather than poling a flat.
• The patch reefs and channel edges. Just off the flats, where the bottom drops, holding the snapper, mackerel and other species that fill a slow tide.

What the tide and the light mean for the method

A flat fishes when the tide brings fish onto it and the light lets you see them, so the guide times the day around the tide and runs to the flat that is right for the wind. Bright, calm conditions are best for spotting fish; wind and cloud push the guide to the sheltered backcountry. This is why the fishery is guided: reading which flat will fish on a given tide and wind is the local knowledge you are paying for.

The guided trip, and the time of day

This is a guided fishery. You hire a flats guide and their poling skiff for a half or full day, and they supply the boat, the local knowledge, the poling skill and usually the tackle. Doing it yourself needs your own skiff, the marks and real poling skill, so it is a guided trip for almost every visitor. Fish the tide the guide picks, not the clock.

Plain version: there is no bank fishing here, so the choice is fly or light spin, and you fish all of it from a poled skiff with a guide. Fly is the purist's method (a heavier outfit for tarpon, lighter for bonefish and permit); light spin presents a live crab, shrimp or baitfish and is often more forgiving in wind. Pick your fish, pick your method, and the guide picks the flat and the tide. Bright and calm beats grey and windy, because you fish with your eyes.

A skiff guide is what makes this fishing possible. They pole the boat silently onto the flat, put you on fish you would never find alone, and read the tide and wind to choose where to be. For a visitor it is the difference between a grand slam and a blank.

How the day works

You book a half day (about 4 hours) or a full day (about 8 hours), on a skiff that takes one or two anglers (most flats skiffs are rigged for two, a few take three). The guide supplies the boat and usually the fly or spin tackle and the flies or bait, though many fly anglers bring their own rods. You stand on the bow, the guide poles and spots, and you cast to the fish they call. The standard booking is a half- or full-day skiff charter.

The time of day is the tide

Unlike a lake where dawn and dusk rule, the flats run on the tide and the light. The guide picks the window when the tide brings fish onto a flat you can see into, which may be the middle of the day on a bright, calm tide. Bright and calm beats grey and windy here, because you fish with your eyes. Trust the guide's timing over the clock.

Doing it yourself

It is possible if you bring or hire a skiff and have the poling skill and the local knowledge, but the flats are unforgiving of a clumsy approach and finding fishable water on the day is the hard part. For a first trip, and for most trips, book a guide.

The guides (how to book a skiff)

Islamorada has the densest concentration of flats guides in the world, so the question is which to book, not whether one exists. Book directly with a flats guide or through the Bud n' Mary's Marina guide fleet. Rates are quoted by the guide for a half or full day, so use the links below to book. The guide's licence covers yours for the trip.

A guide is the one booking that makes this trip, so it is worth getting right. Match the guide to your fish and your method: some specialise in fly, some run light spin, some focus on tarpon and others on bonefish and permit. Book directly:

• Bud n' Mary's Marina, Islamorada – budnmarys.com, 305-664-2461. The oldest and largest fishing fleet in the Keys, established 1944, with a large fleet of flats and backcountry guides poling skiffs for tarpon, bonefish, permit, redfish and snook. A single point to find a flats guide. Mile marker 79.8, oceanside, Islamorada.
• Keys Flats Guide – keysflatsguide.com. An Islamorada flats guide for tarpon, bonefish and permit from a poling skiff.
• Other Islamorada flats and fly guides advertise direct; book one who matches your target fish (tarpon, bonefish or permit) and your method (fly or light spin), and confirm what tackle they supply.

Rates are quoted by the guide and vary by the half or full day and the skiff, so book direct and confirm the rate, what tackle is supplied, and that your licence is covered for the day.

Where to stay

Base yourself in Islamorada itself so you are minutes from the marina and the flats. The village runs along the Overseas Highway with waterfront resorts, lodges and rentals on both the bay and ocean sides, and the marina you fish from sits at mile marker 79.8. Book near your guide's marina so the early start is short.

Stay in Islamorada near the marina

Around Bud n' Mary's Marina (mile marker 79.8, oceanside), Islamorada has waterfront hotels, resorts, lodges and holiday rentals up and down the Overseas Highway, on both the Florida Bay (Gulf) side and the Atlantic (ocean) side. Pick somewhere within a few minutes of the marina you book from so the dawn run to the flats is short. Two to consider, both confirmed trading and both oceanside near the marina:

• Bud n' Mary's own lodging, at the marina itself (budnmarys.com/lodging, 305-664-2461). The marina rents oceanfront rooms and efficiencies, an oceanfront house and a row of moored houseboats and a trawler, all on the same dock you fish from. Staying here puts you a walk from the skiff, which is as short as the dawn start gets.
• Cheeca Lodge & Spa (cheeca.com), a 27-acre oceanfront resort at 81801 Overseas Highway (mile marker 82), about two miles north of the marina, a few minutes' drive. The larger full-service option if you want a resort rather than a dock room.

The wider Upper Keys. If Islamorada is full, Tavernier and Key Largo to the north and Marathon to the south are short drives along the one road, the Overseas Highway. Confirm the drive time to your marina before you book.

Book early for the spring tarpon window and the autumn permit window, when the guides and the rooms fill.

The methods, and the rigs to build them

Two ways to fish the flats: fly, the purist's method, and light spin with live or artificial bait. Fly covers all three fish with a weighted fly led to a sighted fish (a heavier outfit for tarpon, lighter for bonefish and permit). Light spin presents a live crab, shrimp or baitfish. Each links to its own build page; the saltwater leader knot is the one to learn.

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

• Tarpon, on fly → streamer rig. A big tarpon fly on a heavy fly leader (an 11 to 12 weight outfit), cast ahead of a moving fish and worked in front of it. The streamer-style leader and the loop knot at the fly are on the rig page.
• Bonefish, on fly → nymph rig. A small weighted shrimp or crab fly (sizes #1 to #4) on an 8 to 9 weight outfit, led ahead of a tailing or cruising fish and twitched into its path, the way a weighted nymph is led to a trout.
• Permit, on fly → nymph rig. A weighted crab fly (sizes #1 to #2) on a 9 to 10 weight outfit and a long (9 to 12 ft) fluorocarbon leader, dropped ahead of a tailing fish. The hardest cast of the three.
• Any of the three, on light spin → inshore bait rig. A live crab for permit, a live shrimp for bonefish, a live mullet or pinfish for tarpon, on a light spinning outfit with a fluorocarbon leader. The rig page covers the bait presentation.

The knots that tie it. On fly, the leader-and-tippet system uses a surgeon's knot or blood knot to join tippet to leader, a perfection loop for the leader loop, and a non-slip loop or improved clinch at the fly. On light spin, the one to learn is the FG knot, the slim braid-to-leader join that runs through the rod rings. Each rig page links the knots it needs.

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

Pick your fish (tarpon, bonefish, permit) and your method (fly or light spin), and the kit builder trims the shopping list and the rigs to what you need. A guide supplies tackle, so this is mostly for the angler who brings their own: a fly outfit matched to the fish, or a light spin outfit, plus leaders, flies or terminal tackle, and eyewear. No brands, no prices.

That is the whole list. If you book a guide, you can travel with little more than sunglasses, sun protection and (if you like) your own fly rod and a box of flies. If you bring your own tackle, match the fly outfit to the fish, add the leaders and flies, and pack the polarised glasses above all, because you cannot cast at a fish you cannot see.

A trip checklist

Before you go: pick your fish and the month that suits it, book a flats guide for a half or full day (which covers your licence), or buy a Florida saltwater licence if you fish without one, check the release rules and the permit closed season, pack the eyewear and sun kit (and your fly outfit if you bring one), then print the cheat sheet and take it with you.

Do this in order:

1. Pick your fish and your month. Tarpon is the spring trip (May and early June best), bonefish runs March to October, permit is strongest August to October and closed in the Keys 1 April to 31 July. Match the "what's on" strip above to your dates.
2. Book a flats guide. A half or full day from Bud n' Mary's Marina or an Islamorada flats guide (keysflatsguide.com), matched to your fish and method. The guide's licence covers yours for the trip; confirm it is included.
3. Sort the licence if you fish without a guide. A non-resident saltwater licence: annual $47, 7-day $30 or 3-day $17, all sold online at gooutdoorsflorida.com, via the Fish|Hunt Florida app or in person. Carry it while you fish.
4. Check the release rules. Tarpon and bonefish are catch-and-release only; permit is released as the norm and closed 1 April to 31 July in the Keys. Keep flats fish in the water, wet hands, revive before release.
5. Pack for sight-fishing. Polarised sunglasses above all, sun hat, buff, sun cream, quick-drying layers, and your fly outfit and fly box if you bring your own. The shopping list above (trimmed by the kit builder) is your packing list.
6. Print the cheat sheet and fold it into your bag. Get the printable cheat sheet

Common mistakes

The big ones: turning up for permit in the closed season, expecting to fish the flats from the bank, fishing a grey blown-out day when you cannot see, packing for the wrong fish, treating tarpon and bonefish as fish to keep, and underrating how much the cast and the eyewear matter. None is hard to avoid once you know.

• Booking a permit trip in the closed season. Permit are closed in the Keys from 1 April to 31 July. If permit is your fish, go August to October. Spring is the tarpon trip, not the permit trip.
• Expecting to fish from the bank. There is no flats bank fishing here. You fish from a poled skiff, with a guide. Budget for the guide; it is the trip, not an add-on.
• Fishing when you cannot see. This is sight-fishing. A grey, windy, choppy day is hard because you fish with your eyes. Trust the guide to pick the tide, the light and the sheltered flat, even if that means fishing the middle of the day.
• Packing for the wrong fish. Tarpon want an 11 to 12 weight; bonefish an 8 to 9; permit a 9 to 10. Bring the outfit for your target, or rely on the guide's tackle, but do not arrive with a single light rod expecting tarpon.
• Treating the three as fish to keep. Tarpon and bonefish are catch-and-release only; permit is released. Keep them in the water, support and revive them. The eat, the jump and the run are the prize.
• Skimping on polarised sunglasses. You cannot cast at a fish you cannot see. Good polarised glasses and a brimmed hat are not optional on the flats; they are how you find the fish.
• Casting too short or too slow. The fish are sighted and moving, so the first cast has to be accurate and led ahead of the fish. A practised cast before the trip is worth more than any tackle.

Frequently asked questions

The questions travelling anglers ask most about the Florida Keys flats: what is here, the licence and the guide who covers it, prices, the seasons, fishing from the bank, the release rules, booking a guide, the kit, the grand slam, and whether fly or light spin fishes better.