As of today, in season, building toward peak (~August 1). Earth Exhibit tracks the live conditions and flags it the moment it is on.
The Ostional Olive Ridley Arribada is a natural phenomenon where thousands of female olive ridley turtles (Lepidochelys olivacea) converge on Ostional Beach in Costa Rica to lay their eggs.
This mass nesting event, known as an 'arribada,' occurs primarily during the rainy season, with the most significant events typically happening between August and October.
The synchronized nesting helps overwhelm predators and ensures the survival of the species.
The community has developed a sustainable egg harvest program to support local families and protect the turtles by reducing illegal poaching.
Access to the beach during these events is regulated, and visitors are required to coordinate with certified local guides to ensure the safety and conservation of the turtles and their habitat.
Where to see it
A taste of where to see it. The full map, exact coordinates and the best timing for each spot live in the app.
| Viewing spots |
|---|
| Ostional Wildlife Refuge |
This is the short version
This page shows a taste. The app has the full list of where to see this, the exact timing, and live conditions for 1,000+ natural phenomena worldwide, so you know the moment one is genuinely worth the trip.