! Alert

Indoor spaces offering public programs & galleries on Governors Island require proof of COVID-19 vaccination in accordance with the Key to NYC Executive Order. Click here to review all health & safety protocols prior to your visit.

Indoor spaces offering public programs & galleries on Governors Island require proof of COVID-19 vaccination in accordance with the Key to NYC Executive Order. Click here to review all health & safety protocols prior to your visit.

Hours
Saturday 10:00 AM — 5:00 PM
Sunday 10:00 AM — 5:00 PM
Hours
Governors Island National Monument - Castle Williams

Castle Williams is a circular defensive work of red sandstone on the west point of Governors Island in New York Harbor. It was designed and erected between 1807 and 1811, designed by the Chief Engineer of the US Army Corps of Engineers, Lt. Col. Jonathan Williams, for whom the fort is named, and considered a prototype for new forms of coastal fortification. The castle was one component of a larger defensive system for the inner harbor. Castle Williams is open to the public on weekends during the 20212 season, and is under the stewardship of the National Park Service.

Please note: self-guided tours only at this time. Rangers will be on hand to answer questions and provide information.

Getting to Governors Island National Monument
5 Minutes from Soissons Landing 10 Minutes from Yankee Pier
3 Minutes from Soissons Landing 5 Minutes from Yankee Pier
Governors Island National Monument - Castle Williams
Hours
Saturday
10:00 AM — 5:00 PM
Sunday
10:00 AM — 5:00 PM