Salt River Bay
National Historic Park and Ecological Preserve
Salt River Bay is a living museum on St. Croix, U.S. Virgin Islands. It is a dynamic, tropical ecosystem with Prehistoric and colonial-era archeological sites and ruins. It is home to some of the largest mangrove forests in the Virgin Islands as well as coral reefs and a submarine canyon. Experience the beauty, sanctity and spirit of this place.
Salt River Bay National Historical Park is one of two sites on the island you can visit a bioluminescent bay. A second bio bay can be found at Altoona Lagoon. Bio bays are extremely rare with only seven year-round lagoons being known to exist in the Caribbean. Tour operators can arrange a see-through kayak trip to shallow waters allowing one to see the various marine life swimming and agitating the water, lighting it up. The bio bay at Salt River is also home to a second form of bioluminescent creature called comb-jellies, which are not found at Altona Lagoon. A third bioluminescent organism, also found in Salt River, is a species of marine fireworm that performs its brilliant green mating ritual within 57 hours after the full moon, females rising to the surface and leaving a luminescent green puddle for the males to race through, fertilizing the eggs.