Skip to content
Official logo of Colio Sportfishing featuring Capt. Mike Hennessy’s premiere fishing charters in Golfito and Osa Peninsula Costa Rica.
  • SportfishingExpand
    • Costa Rica Sportfishing Charters

      All Charters Fishing Offers

      Hardcore Full Day Fishing

      1/2 Day Fishing Charter

      Clean Sweep Week

      Seamounts Fishing Charter

      Offshore Fishing

      Species

      Seasons

      Inshore Fishing

      Species

      Seasons

  • Tours & ExcursionsExpand
    • Southern Costa Rica Dolphin & Whale Watching Tour
    • Cano Island Snorkeling Tour from Golfito
    • Epic Southern Costa Rica Foil Surfing Tour
    • Southern Costa Rica Surfing Charter
    • Explore Southern Costa Rica – Osa Peninsula Wildlife & Eco Tours
  • About ColioExpand
    • The Fishing Crew
    • Our Boat
    • Our Location
    • Ways to Stay
    • Colio Fishing Charter Gallery
  • AccommodationExpand
    • Beachfront Jungle Lodge Osa Peninsula
    • Fish Hook Marina
  • Fishing Blog
  • Contact UsExpand
    • Support & FAQ
Reserve Now
Official logo of Colio Sportfishing featuring Capt. Mike Hennessy’s premiere fishing charters in Golfito and Osa Peninsula Costa Rica.
  • Colio Sportfishing in Golfito with honeymoon couple posing with a massive Yellowfin Tuna.
    Sportfishing Charters

    Golfito fishing reports 2026

    ByMike Hennessey January 29, 2026January 29, 2026

    Golfito Fishing Reports 2026: Insider Intelligence Beyond the Blue Horizon: Golfito Fishing Reports 2026 and the Osa Peninsula Frontier A 2200-Word Tactical Guide by Capt. Mike Hennessy While the international travel community is just waking up to the Osa Peninsula after recent global rankings, those of us who live on the deck know that 2026…

    Read More Golfito fishing reports 2026Continue

  • Guest releasing a marlin during a 2026 Southern Costa Rica fishing charter
    Sportfishing Charters

    Colio’s 2026 Southern Costa Rica Sportfishing Charters

    ByMike Hennessey January 20, 2026January 20, 2026

    2026 Southern Costa Rica Fishing Charters: The Elite Captain’s Manual Listen, I’ve spent 30 years chasing fins across the globe—from the tournament pressure-cooker of the Bisbee’s Black and Blue to the pristine, untouched reefs of Fiji. I’ve seen 1,200lb Blue Marlin hit the deck in Kona and I’ve held the big checks on the podium….

    Read More Colio’s 2026 Southern Costa Rica Sportfishing ChartersContinue

  • Osa Peninsula Fishing Charters 2026 Capt Mike Hennessy and Luis Enrique
    Sportfishing Charters

    Osa Peninsula Fishing Charters 2026: The Ultimate Captain’s Forecast

    ByMike Hennessey December 19, 2025December 19, 2025

    Osa Peninsula Fishing Charters 2026: The Ultimate Captain’s Forecast The Osa Peninsula has always carried a kind of legend around it—a place where the jungle meets the Pacific in a dramatic, almost prehistoric way. For an angler who has spent over two decades chasing giants from the North Shore to the competitive pressure-cooker of the…

    Read More Osa Peninsula Fishing Charters 2026: The Ultimate Captain’s ForecastContinue

  • Southern Costa Rica Fishing Charters and Things to Do - Yellowfin tuna and guests
    Sportfishing Charters

    Popular Osa Peninsula Fishing Charters – This Month’s Fishing Report & Breakdown

    ByMike Hennessey November 17, 2025November 17, 2025

    The Osa Peninsula has always carried a kind of legend around it—a place where the jungle meets the Pacific in a dramatic, almost prehistoric way. But for anglers, it’s more than scenery. It’s a living, breathing paradise of big-game opportunity, inshore action, and seasonal feeding frenzies that you simply don’t find anywhere else in Costa…

    Read More Popular Osa Peninsula Fishing Charters – This Month’s Fishing Report & BreakdownContinue

  • Southern Costa Rica Fishing Charters and Things to Do - Yellowfin tuna and guests
    Sportfishing Charters

    Southern Costa Rica Fishing Charters and Things To Do

    ByMike Hennessey October 27, 2025November 17, 2025

    Southern Costa Rica Fishing Charters and Things To Do – Colio Sportfishing Table of Contents Southern Costa Rica Fishing Charters – Where the Jungle Meets the Sea Top Things To Do in the Osa Peninsula & Golfito Lodging, Eco Tours & Dolphin Adventures + Bookings Southern Costa Rica Fishing Charters – Where the Jungle Meets…

    Read More Southern Costa Rica Fishing Charters and Things To DoContinue

  • Trophy Mahi Mahi with Osa Peninsula Charters. Fisherman displaying a brightly colored beauty in Costa Rica’s tropical waters.
    Sportfishing Charters

    Costa Rica Big Game Fishing Adventures | Osa Peninsula Charters

    ByMike Hennessey August 30, 2025August 30, 2025

    Introducing Colio Costa Rica Big Game Fishing Adventures | Osa Peninsula Charters Welcome to the ultimate guide for **big game fishing in Costa Rica**! Join us as we explore the pristine waters of the Osa Peninsula, Matapalo, and surrounding hotspots where trophy marlin, yellowfin tuna, roosterfish, sailfish, and mahi mahi await. Whether you are a…

    Read More Costa Rica Big Game Fishing Adventures | Osa Peninsula ChartersContinue

  • Golfito Fishing Charters: Southern Costa Rica Fishing Adventures on our new boat.
    Sportfishing Charters

    Golfito Fishing Charters: Southern Costa Rica Fishing Adventures

    ByMike Hennessey February 10, 2025January 29, 2026

    Southern Costa Rica: Where Fishing Dreams Come True 2026 Guide: Golfito Fishing Charters Southern Costa Rica: Where Fishing Dreams Come True In the far southern reaches of Costa Rica, where the jungle-clad mountains meet the Pacific Ocean, lies one of sport fishing’s last great frontiers. When fishing out of Golfito or Puerto Jimenez, anglers are…

    Read More Golfito Fishing Charters: Southern Costa Rica Fishing AdventuresContinue

  • 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…

    Read More Southern Costa Rica Fishing Calendar: The 2026 Monthly GuideContinue

  • 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…

    Read More Osa Peninsula FishingContinue

  • 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…

    Read More Yellowfin Tuna Costa RicaContinue

Page navigation

1 2 Next PageNext

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

Sportfishing

  • Fishing Charters
  • Our Fishing Boat Colio
  • Expert Guides
  • Where to Stay

Useful Links

  • Fishing Blog
  • Tours & Excursions
  • Fishing Locations
  • Contact Us
Start Fishing with us now.

5.0

Reserve Now

© 2026 Colio Sportfishing 

Facebook Instagram Google Reviews

Book Online

Easy online
reservations!

BOOK Now
  • All Fishing Charters Costa Rica
  • Full Day Fishing Charter
  • Half Day Fishing Charter
  • 7 Days Fishing Charter
  • Seamount Fishing Charter Osa Peninsula
  • Sportfishing
    • Offshore Fishing Species Costa Rica
    • Southern Costa Rica Fishing Seasons – Year-Round Action – Offshore
  • Osa Peninsula Tours and Things to Do
    • Southern Costa Rica Dolphin & Whale Watching Tour
    • Cano Island Snorkeling Tour from Golfito
    • Epic Southern Costa Rica Foil Surfing Tour
    • Southern Costa Rica Surfing Charter
    • Explore Southern Costa Rica – Osa Peninsula Wildlife & Eco Tours
  • About Colio
    • The Fishing Crew
    • Explore Osa Peninsula’s #1 Fishing Charter
    • Ways to Stay
    • Southern Costa Rica Fishing – Osa Peninsula, Matapalo & Golfito
    • Colio Fishing Charter Gallery
  • Accommodation
  • Fishing Blog
  • Contact Colio Sportfishing