
Charlestown · Massachusetts
Overview
. . . where you can walk a Civil War-era fort, view historic lighthouses, explore tide pools, hike lush trails, camp under the stars, or relax while fishing, picnicking, or swimming—all within reach of downtown Boston. Youth programs, visitor services, research, wildlife management, and more are coordinated on the park's 34 islands and peninsulas by the Boston Harbor Islands Partnership.
The Boston Harbor Islands have a humid maritime climate characterized by slightly cooler temperatures than the mainland, so dress in layers. Typical summer conditions feature air temperatures approximately 5-10 degrees cooler than the mainland, winds of 0-15 knots and waves of 1-3 feet.
Gallery
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Things to do

Join our volunteers on the Boston Harbor Islands to create your very own piece of artwork!
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Become a Junior Ranger at Boston African American National Historic Site by learning about the sites along the Black Heritage Trail Trail® here in Boston.
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Become a Junior Ranger at Boston Harbor Islands National and State Park!
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Become a Junior Ranger at Boston National Historical Park by learning about the sites along the Freedom Trail® here in Boston.
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Experience the ultimate urban escape with an overnight camping stay on the Boston Harbor Islands!
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Explore Downtown Boston, Beacon Hill, and Charlestown with a self-guided audio tour!
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Travel back in time and explore Fort Warren on Georges Island.
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Join a ranger for a tour of Fort Warren on Georges Island!
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Hike one of the drumlins of Spectacle Island to catch beautiful views of the city and harbor.
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