Spotlight St. Thomas - Military Structures (Water Island)

Military Structures

There are several military structures on Water Island; mainly ammunition bunkers and platforms designated as possible light or gun emplacements. The ammunition bunkers are built into the north side of Carolina Point. Some structures are on private property.

Fort Segarra Video

Fort Segarra is an underground fort, part of the United States' defense strategies during World War II. Its purpose was to help protect a submarine base on St. Thomas. The war ended before its completion and the project was subsequently abandoned. Visitors to Water Island can view gun emplacements, walk inside tunnels and visit underground rooms. The observation deck on the roof of the fort offers a great panoramic view of Water Island, the ocean and neighboring islands. Click Here for Hiking/Walking Directions to Fort Segarra.

Note: Underground rooms and tunnels are dark and in some areas the flooring is broken with exposed pipes and wires; a flashlight and caution should be used when visiting.

*Visitors to Water Island must take the small Water Island ferry (max. 25 passengers) which operates daily between Crown Bay Marina on St. Thomas and Phillips Landing on Water Island. The ferry docks in front of Tickles Restaurant at the marina. Ferry service is reliable and takes about 10 minutes, one way.