The leatherback sea turtle population in the Pacific, once the stronghold of the species, has declined by over 90% since 1980.  Help scientists investigate this decline and look for ways to save this species.

Many of the remaining Pacific leatherbacks nest in the sands of Playa Grande, Playa Ventanas, and Playa Langosta on the Pacific coast of Costa Rica. Female leatherbacks dig holes with their flippers and lay about 80 round eggs, a process they’ll repeat up to 12 times during the breeding season. In about two months, the fragile hatchlings will emerge.

The world is a dangerous place for these tiny turtles and their parents. They’re threatened by the climate emergency, boat traffic, fishing gear, and humans harvesting their eggs. To truly understand why this ancient species has declined so rapidly and what we can do to stop this decline, researchers need to know everything about them: their behaviour, physiology, genetics, population biology, and migration patterns.

To build this knowledge base, you’ll walk the beach at night when turtles are active, getting up close to these massive animals to attach transmitters that will track their local and long-distance movements. You’ll also help relocate eggs from nests in dangerous spots,  where the waves might wash them away, to a hatchery. This work is vitally important with leatherbacks declining at such an alarming rate, every turtle is precious.


Parque Nacional Marino Las Baulas, Guanacaste Province, Costa Rica



Includes all accommodation, meals, transfers, insurance and research activities


9 days

Dates 2023

Update January 2023: Our overseas experiences are coming back on sale for 2023! Keep an eye on this page for upcoming 2023 expedition dates, to be released soon.

    Activity Level

    Very Active

    Lead Scientist

    Frank Paladino


    Research Station
    Internet access
    • Single rooms possible
    • Couples rooms possible