Mass Gatherings
When sea turtles nest together in synchronized waves
Kemp's ridley sea turtles are famous for arribadas, mass synchronized nesting events that can suddenly fill beaches with nesting females.
Video: Texas Parks and Wildlife. Embedded from the original YouTube source.
A sea turtle arribada can turn an ordinary beach into a moving landscape of shells and flippers. Females arrive from the surf, crawl inland, dig nests, lay eggs, and return to the water.
Kemp's ridley turtles are particularly associated with synchronized nesting. U.S. Fish and Wildlife Service reporting in 2026 noted signs of renewed arribada-like behavior in Texas alongside record nesting totals there.
What to know
- Arribada means a mass arrival of nesting turtles.
- Kemp's ridleys are endangered and nesting beaches require careful protection.
- Viewing and photography should never interfere with nesting females or hatchlings.
Good questions
What people usually want to know
What is a sea turtle arribada?
An arribada is a synchronized mass nesting event in which many female sea turtles come ashore to nest over a concentrated period.
Can people watch an arribada?
Some locations allow controlled viewing, but rules vary and visitors must avoid disturbing nesting turtles, nests, or hatchlings.