Experience the Boston Harbor IslandsDuring the summer, visit one of the seasonally-accessible islands: Spectacle Island, Georges Island, Peddocks Island, and Thompson Island (also known as Cathleen Stone Island). During the winter, visit one of the mainland parks: Worlds End, Deer Island, Nut Island, and Webb Memorial State Park. ![]() Explore One of the Boston Harbor Islands
Choose an island and plan your adventure! ![]() Explore One of the Mainland Parks
Visit one of the four mainland parks! Ranger-led Programs
Specialty Programs
Self-Guided Activities
Youth Activities
All Things to Do |
Last updated: June 30, 2025