Costa Rica fly fishing splits three ways: tarpon and snook at Caribbean river mouths such as Barra del Colorado and Parismina, machaca and guapote in lowland jungle rivers, and roosterfish and sailfish off the Pacific coast. Every angler needs an INCOPESCA sport fishing license, from $16.95 for eight days.

Costa Rica is a small country that fishes like a big one. You get two coasts with completely different fish, mountains topping 12,000 feet, and lowland jungle rivers where the main target eats fruit. Very few places let you chase tarpon in the morning surf and a piranha cousin under a rainforest canopy in the same week.

This page is the Costa Rica map: the Caribbean tarpon rivers, the jungle rivers, the Pacific side, the season, the license, and what our podcast guest Jesse Males told us about fishing here. For the full conversation recap, read Costa Rica Fly Fishing: Machaca, Tarpon and Rooster Fish.

Here's the part of that conversation I haven't heard anywhere else. On episode 144 of the Fly Fishing Insider Podcast, released November 17, 2021, Jesse Males, a Florida-raised angler who now guides in Costa Rica, explained why Caribbean tarpon here are never a sight-fishing game. The river mouths run chocolate brown, with roughly four feet of muddy river water riding on top of clear ocean. His fix is an intermediate line with about 15 feet of lead core to punch the fly through that dirty layer, a leader kept to around six and a half or seven feet so the lead core doesn't belly, and a strip strike on every tap, because a 100-pound tarpon can eat like a baitfish. He also made the case that the Barra del Colorado country on the Nicaragua border was the mecca of tarpon fishing in the 1970s and early 1980s, and that the numbers of fish he still sees there are otherworldly.

Where to Fly Fish in Costa Rica

Costa Rica fly fishing travel is built around three very different trips. Pick the fish first, then the coast, then the month.

Barra del Colorado: the northern tarpon country

Barra del Colorado sits in the far northeast of Costa Rica on the Nicaragua border, inside the Barra del Colorado Wildlife Refuge, which protects 91,200 hectares (about 225,000 acres). There are no roads; anglers arrive by domestic flight from San José or by boat through the Tortuguero canals. The rivers hold tarpon, snook, guapote, gar and machaca, with barracuda, mackerel and jacks outside. Costa Rica's tourism board, the ICT, calls northern Limón one of the most popular sport fishing areas in the province.

Parismina: river-mouth tarpon and snook

Parismina is a small Caribbean village in Limón province, roughly halfway between Tortuguero and Limón, at the mouth of the Reventazón River. The Instituto Costarricense de Turismo (ICT) names the Atlantic tarpon as the main fish at Barra de Parismina, fished mostly from a boat or from shore at the river mouths. Lodges a short boat ride from the village target tarpon and snook. No road reaches Parismina, so plan on a boat or a small plane. Fish are present year-round, but the weather decides the day.

Lowland jungle rivers: machaca and guapote

The machaca is a cousin of the piranha that lives in Costa Rica's lowland jungle rivers, where a big fish runs eight to ten pounds. According to Jesse Males, the machaca rivers he fishes are about two hours north of San José, which makes them a workable day trip, floated in frame rafts under overhanging trees. Machaca wait under chilamate trees for falling fruit, so the fly is a painted fruit imitation dropped vertically. The same rivers hold guapote, the rainbow bass, which eats surface bugs and streamers.

The Pacific coast: roosterfish and sailfish on the fly

Costa Rica's Pacific side is the billfish and roosterfish coast. Jesse Males told us the beaches here are not built for chasing roosterfish on foot the way some Mexican beaches are, so roosterfish are teased up from boats just outside the breakers with a popper, stick bait or live bait, then switched to the fly. The Costa Rica Sportfishing Federation (FECOP) notes that billfish push into the Central Pacific from December, with numbers building from January through April, the dry season. Our roosterfish fly fishing guide covers rods, lines and the bait-and-switch.

When to Go Fly Fishing in Costa Rica

There is no single best month for Costa Rica, because the Caribbean and Pacific sides run on different weather. Caribbean tarpon fishing depends on calm weather windows, and the ICT notes the action slows for a while once the rainy season begins in mid-May and the rivers fill with sediment. The Pacific dry season, December to April, is the Central Pacific billfish window. Machaca fish all year, and rain makes them better.

Intensity:LightModerateHeavy

The Caribbean tarpon windows are the ones Jesse Males described on the podcast; the ICT says tarpon are present year-round and conditions can change overnight. Billfish timing and the dry season come from FECOP. Blank cells mean not worth planning around.

Book a Local Pro in Costa Rica

See all FFIP Certified pros, including saltwater guides in Belize and the Florida Keys.

Custom Flies and Rods from Costa Rica

Costa Rica Tips from Podcast Guests

• Strip-strike every subtle tap when fishing blind in murky water
  In Costa Rica's dirty river mouths you never see the eat, and many tarpon takes feel no heavier than a small baitfish. Strip-strike everything.
  Jesse Males, Costa Rica fly fishing guide, on Fly Fishing the Jungle of Costa Rica, Episode 144
• Strip tight before you set the hook on a tarpon
  Lifting the rod is the trout-set reflex. Keep stripping until the leader comes tight, then set.
  Bruce Chard, Florida Keys tarpon and saltwater guide, on Guided EP 19, Grand Slams All Day
• Prioritize casting speed over casting distance
  Forty feet with two false casts beats forty feet with four.
  David Mangum, Florida tarpon guide, on Guided EP 7, Tarpon Success
• Buy a saltwater reel with a reliable, tight drag
  Cheaper is only cheaper until a weak drag costs you the fish you flew to Costa Rica for.
  Captain Joel Dickey, Florida Keys tarpon guide

Want more? Browse every tip in the Fly Fishing Tips Library, sorted by region, water type, species and skill.

Hear Costa Rica on the Podcast

Shop the Water: Flies and Gear for Costa Rica

Jesse Males fishes machaca on an 8-weight with a floating line and a short, heavy leader, and Caribbean tarpon on an intermediate line with lead core. Pack dark and bright baitfish patterns for dirty river mouths and snook, surface bugs for guapote, and buy machaca fruit flies locally. The flies come first below, followed by rods and lines.

Costa Rica Fly Fishing Questions, Answered

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Tight lines, everyone!

By Christian Bacasa, host of the Fly Fishing Insider Podcast. Last reviewed October 2026.

Prices, availability, flight routing and entry requirements change. Every figure on this page is the starting rate published by the lodge or by Frontiers International Travel at the time of writing, per angler, and is a starting point for a quote, not a quote. Seasons, lodge capacity, charter schedules, visa and passport rules and license requirements can all change without notice. Confirm current pricing, availability and entry requirements with your Frontiers specialist before you book anything.

Sources: License types, fees and online application: INCOPESCA carné de pesca deportiva. Parismina and northern Limón fishing and seasons: Instituto Costarricense de Turismo Caribbean guide. Parismina location and access: Parismina. Barra del Colorado refuge, access and species: Barra del Colorado Wildlife Refuge. Billfish release and Central Pacific timing: FECOP. Machaca, Caribbean tarpon and roosterfish techniques: Jesse Males on episode 144 of the Fly Fishing Insider Podcast.