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.  Contact info@seaturtles.org for more information.


Action & Events

Increase Protections for Silky Sharks

September 5, 2016

We are thrilled to announce that silky sharks, thresher sharks & rays all gained greater global protections at CITES! Thank you for your help achieving this positive outcome.

Fortalecimiento de la Protección del Tiburón Sedoso

September 5, 2016

El tiburón sedoso, un importante depredador en la cúspide de la cadena alimenticia que ayuda a mantener la salud y la productividad de los ecosistemas oceánicos, recibe su nombre por su piel lisa y...

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.


Why I Give Monthly: In the Words of Donors

October 20, 2016

In the words of the people who support Turtle Island’s vision to protect animals and fight against extinction. Turtle Island Restoration Network pro...

Scuba Dive with Hammerhead Sharks at Cocos Island, Costa Rica

October 3, 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)!

We Did It! Sharks & Rays Gain Global Protections

October 4, 2016

We are thrilled to report that our efforts to gain greater global protections for sharks and rays have paid off! Thanks to your help

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, ...