Puerto Rico, USA Territory: Travel Facts & Tips

Discover Puerto Rico, USA Territory — Bioluminescent bay.

•Mosquito Bay in Vieques is recognized as one of the brightest bioluminescent bays in the world, with a concentration of over 720,000 dinoflagellates per liter.
•In 2019, the Puerto Rico Tourism Company reported that the bioluminescent bays attract approximately 100,000 visitors each year, contributing significantly to local eco-tourism.
•The phenomenon of bioluminescence in Mosquito Bay is primarily caused by a single-celled organism called Pyrocystis fusiformis, which emits light when disturbed.
•Bioluminescent bays, including those in Puerto Rico, are rare, with only a handful existing worldwide; Puerto Rico is home to three of them: Mosquito Bay, La Parguera, and Laguna Grande.
•Efforts to protect the bioluminescent bays have included the establishment of the Vieques National Wildlife Refuge in 2001, which aims to preserve the unique ecosystems surrounding these natural wonders.

Frequently Asked Questions

Bioluminescent bay.

The best time to visit is Dec–Apr. Budget travelers typically spend $100-200 per day.

Puerto Rico, USA Territory is located at coordinates 18.2208, -66.5901 in USA Territory.