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Official logo of Colio Sportfishing featuring Capt. Mike Hennessy’s premiere fishing charters in Golfito and Osa Peninsula Costa Rica.
  • Angler catching a nice sailfish off the Osa Peninsula, one of the secret fishing spots in Costa Rica
    Costa Rica Fishing Destinations

    Secret Fishing Spots Costa Rica: The Osa Peninsula is different

    ByMike Hennessey February 24, 2026February 24, 2026

    Southern Costa Rica Fishing Guide: Why Golfito Produces Fish When Other Places Don’t Most anglers researching Costa Rica fishing start at the same places — Quepos, Los Sueños, Tamarindo, Papagayo. And yes, those are good fisheries. But they are marina fisheries. “Southern Costa Rica is unlike anywhere else. The phrase Secret Fishing Spots Costa Rica…

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  • Colio Sportfishing in Golfito with honeymoon couple posing with a massive Yellowfin Tuna.
    Costa Rica Fishing Destinations

    Southern Costa Rica Fishing: The Real Story of Golfito and the Osa Peninsula

    ByMike Hennessey February 20, 2026February 24, 2026

    Southern Costa Rica has quietly become one of the most consistent big-game fishing regions in the Eastern Pacific. While many anglers recognize names like Los Sueños or Quepos, experienced fishermen increasingly look farther south toward Golfito, Puerto Jiménez, and the waters surrounding the Osa Peninsula. The reason is not hype. It is geography. Here, deep…

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  • Angler holding a trophy yellowfin tuna during southern costa rica fishing with Colio Sportfishing Charters
    Costa Rica Fishing Destinations

    Secret Fishing Grounds of Southern Costa Rica

    ByMike Hennessey September 1, 2025September 1, 2025

    Table of Contents Introduction: Why Southern Costa Rica is Different Month-by-Month Fishing Seasons Fun Facts About Costa Rica Fishing Meet Capt. Mike Hennessey & The Colio Crew Colio Sportfishing Charter Packages Southern Costa Rica Fishing FAQ Book Your Costa Rica Fishing Adventure Introduction: Why Southern Costa Rica is Different When anglers think of Costa Rica,…

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  • Osa Peninsula Fishing
    Costa Rica Fishing Destinations | Sportfishing Charters

    Osa Peninsula Fishing

    ByMike Hennessey October 25, 2024February 24, 2026

    The Osa Peninsula: Where Fishing Dreams Become Reality On Costa Rica’s southern Pacific coast, where the jungle-clad mountains of the Osa Peninsula meet the sea, lies one of sport fishing’s last great frontiers. This remote paradise, framed by the pristine waters of the Golfo Dulce and the vast Pacific Ocean, offers anglers something increasingly rare…

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Our fishing operation runs out of the Osa Peninsula, Costa Rica one of the world’s most biodiverse marine and coastal environments.

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