• Visitors tour Castle Williams.

    Governors Island

    National Monument New York


Governors Island National Monument has two examples of early US fort design: Castle Williams and Fort Jay.

Did You Know?

nature in NY

Most of the trees on Governors Island are fairly young. Large shrubbery was removed to provide a clear line of cannon fire to enemy ships that might have entered New York Harbor. The reintroduction of trees in the 1870s reflects the island’s transition from a fortification into a residential community.