Southern Costa Rica Offshore Fishing Species
From massive black marlin patrolling the ledges to yellowfin tuna exploding on the surface, southern Costa Rica’s pristine waters offer world-class action for six premier offshore species.
Southern Costa Rica Offshore Fishing Species
Costa Rica’s Big Game Offshore Fishing Species
Target trophy gamefish in Southern Costa Rica’s most productive waters, where giant black marlin, powerful yellowfin tuna, and acrobatic sailfish deliver the ultimate offshore big game fishing adventure.
black marlin
Ancient volcanic forces shaped the Osa Peninsula and Golfito, creating underwater ledges and rock piles that form perfect Black Marlin habitat. These predators, often topping 500 pounds, erupt in spectacular aerial displays just minutes from shore, launching their massive frames high above the water. Our light tackle approach amplifies the intensity, giving anglers an intimate connection with one of Southern Costa Rica’s most powerful offshore fishing species.
yellowfin tuna
Southern Costa Rica’s yellowfin tuna fishery offers two thrilling approaches: patient live bait precision for giants over 200 pounds, or explosive surface action casting poppers and stickbaits into frenzies. Whether you prefer the methodical challenge of live bait or the adrenaline of surface strikes, these tuna deliver unforgettable battles. With specimens from 10 to 150+ pounds, they are among the most aggressive offshore fishing species in the Osa Peninsula.
Costa Rica’s Ultimate Playground for Anglers
Osa Peninsula sportfishing charters on Costa Rica’s southern coast puts you in the heart of some of the best fishing on Earth. From trophy marlin and tuna offshore to bucket-list roosterfish along the beaches, Colio Sportfishing helps anglers turn every dream into reality.
Built by Anglers, for Anglers!
the Colio Difference
Proven Experience
Mike’s 30+ years of global fishing expertise and major tournament wins consistently translate to superior charter experiences.
Big Fish, All Year Long
Year-Round Trophy Fish
From offshore giants to inshore legends, Golfito’s Pacific waters offer unmatched trophy fishing year-round.
Fish Like a True Pro
Educational Charters
Experience hands-on, immersive sportfishing, where each outing teaches new skills and delivers nonstop excitement.
Fishing Without Limits
Designed for Action
Our custom-designed vessel and premium gear make every trip—inshore to offshore—a world-class adventure.
Make Your Dream Trip Reality
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World-Class Fishing Charters in Costa Rica’s Osa Peninsula
Celebrated as One of Costa Rica’s Best Fishing Charters in 2024 — join the anglers who rated Colio Sportfishing #1 for all-inclusive Osa Peninsula trips.
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Thanks for great fishing and lots of laughs 😊
Mike’s the best guy to fish with in southern Costa Rica. Can’t wait for the … More next adventure! -
Amazing time!!! We got tuna, rooster, fish, Marlin, snapper. I have never caught that many fish on one boat before it was … More amazing! Captain was so professional and extremely safe and very knowledgeable of the area. Everything was taken care of.
Definitely going back 👍 -
Fishing on the Colio in next level! The knowledge of captain and crew is enough on its own but combined with state of the … More art electronics elevates the success rate to the ridiculous.
Helpful and patient with some of our less experienced group ensured smiles and high fives. Good humor and the ability to quickly change tactics made for an unforgettable fishing trip for my family.
We will be back for more!
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Mike Hennessy and his crew are among the finest on the planet. If you want a World Class Sportfishing experience, Colio Sportfishing … More is the your operation of choice.
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We fish all over the world and this is a top notch operation! Not only that the captains make ever trip so fun and memorable! … More Thank you Coolio for the epic time!
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Greatest charter and best experience ever. Everything was top notch, Captain and crew were awesome tending to our every need … More and crew always had us ready for a big catch. Tuna bite was incredible and sail fish for a fun fight. I’ve been twice now and the second time was as good as the first with a new experience.
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I cannot wait to get on the new boat but I can guarantee that if you take this charter you will have an experience of a lifetime! … More Best captain ever and I can’t stress enough….justGO!
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Thank You to Mike and Luis for an Epic Fishing Experience!
Thank you both for an unforgettable, fishing adventure! You guys … More are the true example of what every sport fishing charter should strive to be. Beyond the incredible experience and lifetime memories, I left feeling like part of the family.
Thank you again for such an amazing time!
Warm regards,
Ignacio del Rio -
We fish all over the world and this is a top notch operation! Not only that the captains make ever trip so fun and memorable! … More Thank you Coolio for the epic time!
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Thanks for great fishing and lots of laughs 😊
Mike’s the best guy to fish with in southern Costa Rica. Can’t wait for the next adventure!
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Amazing time!!! We got tuna, rooster, fish, Marlin, snapper. I have never caught that many fish on one boat before it was amazing! Captain was so professional and extremely safe and very knowledgeable of the area. Everything was taken … More care of.
Definitely going back 👍
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Fishing on the Colio in next level! The knowledge of captain and crew is enough on its own but combined with state of the art electronics elevates the success rate to the ridiculous.
Helpful and patient with some of our less experienced … More group ensured smiles and high fives. Good humor and the ability to quickly change tactics made for an unforgettable fishing trip for my family.
We will be back for more!
Masters of Costa Rica’s Waters
EXPLORE OSA PENINSULA ‘S
#1 FISHING CHARTER
Fishing Charters Costa Rica
Clean Sweep Week Charter
Experience the ultimate Costa Rica adventure: three days of world- class fishing followed by three days at a matapalo beachfront jungle lodge, combining premier sportfishing with unforgettable wildlife encounters.
Fishing Charters Costa Rica
Full Day Fishing Charter
Experience eight hours of world-class fishing off Costa Rica’s Osa Peninsula most productive waters. Our adaptive approach and state-of-the-art vessel ensures an epic day chasing your dream species.
Fishing Charters Costa Rica
Half Day Fishing Charter
Perfect for morning adventures, this four-hour trip combines world-class fishing with expert instruction. Target marlin, tuna, roosterfish, and cubera snapper while learning professional techniques.
Fishing Charters Costa Rica
Seamount Fishing Charter
Journey 30-70 miles offshore to underwater mountains where blue marlin congregate in extraordinary numbers. This 12-hour adventure offers the ultimate big-game fishing experience in comfort and safety.
Our Partners
I would like to “Thank” our partners and sponsors of Colio Sportfishing for all the great products ans support that help us deliver the absolute best program and to consistently stay on the fish with quality and dependability.
