May Day in Costa Rica brought together protesters from public workers unions and a wide variety of other groups, including students, sex workers and indigenous people.
A small group of demonstrators hurled rocks at the Legislative Assembly building, police officers and members of the national media. At least 20 people were arrested.
Artificial light from hotels, homes and streets can keep female sea turtles from nesting and send hatchlings inland. A CREMA biologist says nesting has dropped at Tamarindo and Santa Teresa.
