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Official logo of Colio Sportfishing featuring Capt. Mike Hennessy’s premiere fishing charters in Golfito and Osa Peninsula Costa Rica.
  • Sailfish release on an offshore seamount fishing trip in Southern Costa Rica.
    Sportfishing Charters

    Southern Costa Rica Fishing Calendar: The 2026 Monthly Guide

    ByMike Hennessey January 10, 2025January 29, 2026

    2026 Southern Costa Rica Fishing Calendar Southern Costa Rica Fishing Calendar: The 2026 Monthly Guide The waters of Southern Costa Rica, spanning from the Osa Peninsula to the protected reaches of the Golfo Dulce, represent one of Central America’s last pristine sportfishing frontiers. This Southern Costa Rica fishing calendar breaks down the prime gamefish available…

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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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  • Successful anglers with trophy catch Costa Rica fishing trip
    Sportfishing Charters

    Yellowfin Tuna Costa Rica

    ByMike Hennessey September 8, 2024August 30, 2025

    Yellowfin Tuna Paradise: Costa Rica’s Southern Renaissance In what might be sport fishing’s greatest conservation success story, Costa Rica’s ban on purse seine vessels within 200 miles of shore has transformed the country’s southern waters into a yellowfin tuna paradise. The waters off Golfito and Puerto Jimenez now offer something that seemed lost to history…

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  • Sailfish caught during Costa Rica fishing adventure
    Sportfishing Charters

    Costa Rica Sailfish

    ByMike Hennessey August 15, 2024August 30, 2025

    Sailfish Capital: The Magic of Southern Costa Rica When it comes to Pacific Sailfish, Costa Rica’s southern waters stand alongside Guatemala as the undisputed capital of the sport. But the region around Golfito and Puerto Jimenez offers something special – not just numbers, but size. These waters consistently produce what can only be described as…

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  • Mahi Mahi Season Costa Rica
    Sportfishing Charters

    Mahi Mahi Season Costa Rica

    ByMike Hennessey July 7, 2024August 30, 2025

    Fall of Gold: Mahi Mahi Season in Southern Costa Rica When autumn arrives in Costa Rica’s southern waters, something magical happens. From September through December, the ocean comes alive with one of nature’s most spectacular shows – the arrival of massive schools of Mahi Mahi (also known as Dorado or Dolphinfish). During these golden months,…

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  • Black Marlin Fishing Costa Rica
    Sportfishing Charters

    Black Marlin Fishing Costa Rica

    ByMike Hennessey June 22, 2024August 30, 2025

    Black Marlin: The Nearshore Giants of Costa Rica’s Southern Zone The southern zone’s dominance as Costa Rica’s premier fishing destination isn’t aWhile Costa Rica’s entire Pacific coast offers exceptional fishing opportunities, the country’s southern zone holds a special claim to fame: consistent access to one of sport fishing’s most prized catches, the mighty Black Marlin….

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  • Best Place to Catch Roosterfish in Costa Rica
    Sportfishing Charters

    Best Place to Catch Roosterfish in Costa Rica

    ByMike Hennessey May 13, 2024August 30, 2025

    The Best Place to Catch Roosterfish in Costa Rica: A Guide to the Osa Peninsula While Costa Rica offers numerous fantastic fishing destinations along its Pacific coast, the crown jewel for trophy roosterfish has to be the country’s southern Pacific region, particularly the pristine waters surrounding the Osa Peninsula. This remote paradise, with its rugged…

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  • Seamount fishing adventure offshore Costa Rica
    Sportfishing Charters

    Costa Rica Blue Marlin Fishing

    ByMike Hennessey April 11, 2024August 30, 2025

    Blue Marlin Paradise: Costa Rica’s Offshore Seamount Adventure In the vast Pacific waters off Costa Rica’s southern zone lies a series of underwater mountains that create one of the world’s most extraordinary blue marlin fisheries. These offshore seamounts, rising from the abyss 40 to 100 miles from shore, represent the ultimate adventure for serious big…

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  • Southern Costa Rica offshore Wahoo fishing with Colio Sportfishing
    Sportfishing Charters

    Where is the Best Fishing in Costa Rica

    ByMike Hennessey March 21, 2024August 30, 2025

    Where to Find Costa Rica’s Best Fishing: The Southern Zone Advantage While Costa Rica’s entire Pacific coast offers excellent fishing opportunities, serious anglers are increasingly discovering what locals have long known – the country’s southern zone represents the last true frontier of big game fishing in Central America. While destinations like Los Sueños and Quepos…

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