Island Facts

The sizes of the islands in the park change every hour, as the ocean tides ebb and flow on their shores. All totaled, the park islands change from 1,483 to 3,067 acres during the tidal cycle. Learn how island acreage was measured, considering daily tides.

The names of several islands have also changed over time. How we selected the spelling of island names, and alternate names for some islands, are described in, "What's in a name?"

 

Choose an island below for details about each of the islands in the park. The topics shown are size, location, managing agency, facilities, natural history, historical sketch . . . and more.

Bumpkin Island Button Island Calf Island Deer Island Gallops Island Georges Island Grape Island The Graves Great Brewster Green Island Hangman Island Langlee Island Little Brewster Little Calf Island Long Island Lovells Island Middle Brewster

Moon Island Nixes Mate Nut Island Outer Brewster Peddocks Island Raccoon Island Ragged Island Rainsford Island Sarah Island Shag Rocks Sheep Island Slate Island Snake Island Spectacle Island Thompson Island Webb Memorial Park Worlds End