4 Star 88x31Turtle Island leads primary research with volunteer dive research assistants at Cocos Island National Park, Costa Rica, an oasis of ocean life. Hundreds of sharks and rays, schools of fish numbering in the tens of thousands and endangered sea turtles surround the island.  Our research is setting the basis for better protections at Cocos Island and for a “Protected Swimway” to save sharks, sea turtles and other migratory animals as they swim throughout the region.

Learn how to join a Cocos Island Research Expedition today to help study, tag and track sharks and sea turtles with leading environmentalists at Cocos Island. $2,000 discount available on our upcoming Nov./Dec. expedition! Contact info@seaturtles.org for more information.


Action & Events

Tell U.S. Airline Carriers Not to Fly Shark Fins

September 5, 2016

An estimated 100 million sharks are killed each year, and many of those sharks are killed for their fins alone. Please ask U.S. airlines to say 'no' to flying shark fins from ports to plates.

Costa Rica: Don’t Break Promises to Protect Endangered Sea Turtles and Sharks

August 24, 2015

Costa Rica used to be known as the shining beacon in protecting our oceans. But now, the new Costa Rican President is threatening to roll back protections for endangered sea turtles and sharks.

10-Day Scuba Diving Expedition to Cocos Island, Costa Rica

August 4, 2017
12:00 AM
August 14, 2017
12:00 AM
Cocos Island, Costa Rica

August 4– 14, 2017 (10-day trip on the Argo) Join a research expedition to Cocos Island and work alongside scientists to research sea turtle and shark populations and migration at one


Scuba Dive with Hammerhead Sharks at Cocos Island, Costa Rica

November 20, 2016

Come scuba dive with hammerhead sharks! Right now you can join our November 29 – December 9, 2016 expedition (10-day trip on the Argo)!

Now is the Time to Stand with the Sea Turtles

November 9, 2016

Last night’s election results do not bode well for the animals you and I deeply care about, and the environment on which we all depend.

Giving Tuesday is November 29th!

October 24, 2016

What is Giving Tuesday? #GivingTuesday™ (#GT) is a movement created to celebrate giving on the Tuesday  following Cyber Monday. The fifth annual Gi...

Cocos Expedition Resources

  • Sea Turtle Ecology Course $19.95


    Become an expert on all things sea turtle by enrolling in the Sea Turtle Ecology course! Proceeds benefit Turtle Island ...

  • Cocos Island Gallery

    cocos whaleshark

    Cocos Island National Park in Costa Rica is known worldwide as an ocean haven for spectacular sharks, rare sea turtles, ...