About 20 thousand people.

San Pedro is the main town on Ambergris Caye, a sunny island in the Caribbean Sea. It is Belize's most famous beach spot, where golf carts zip along sandy streets instead of cars.
You can snorkel with rays and nurse sharks at Hol Chan, ride a glass-bottom boat, and build sandcastles on the beach.
Just offshore lies the great Belize Barrier Reef, one of the largest in the world and home to thousands of sea creatures.
People get around by golf cart and boat, and the sandy streets, palm trees, and warm water make it feel like a holiday every day.