Please be advised that our permit system is currently undergoing maintenance and will be unavailable today, Monday, February 19, to return tomorrow, February 20.

Photo by A. Moore


Governors Island National Monument, managed by the National Park Service, consists of two 1812-era forts, Fort Jay and Castle Williams. The National Park Service offers interpretive programs throughout the season and tours of the Castle and Fort.

Fort Jay: An Island Star!

Courtyard open daily 10 AM until 4:00 PM. Weekends tours every hour from 11:30 AM till 3:30 PM. About 30 minutes, meet at the Fort Jay bridge. Fortify your mind! Tour one of the best examples of classic star-shaped fort design anywhere in the country, including the oldest structure on the island

More information at

Castle Williams

Tours every hour from 11:30 AM till 3:30 PM. About 30 minutes. Get some history in the round at the best-preserved circular fortification in the nation. On weekends the Castle is open until 5:30 PM with an additional tour at 4:30 PM.

More information at