Just 15 minutes from downtown Boston, Spectacle Island is ideal for hiking, swimming, boating, and learning. Stop in at a “green” visitor center with exhibits about the history and evolution of the island. Go swimming on a sandy beach (one of the few on the islands) supervised by trained lifeguards in the summer. Take in panoramic views of the harbor and city from the tallest hill on the Boston Harbor Islands. The marina makes it a popular destination for boaters.