Three Boston bike rides
Harborwalk Cruise: Fun stopCastle Island / Pleasure Bay
Hit the brakes and stay a while at the whimsically named Castle Island and Pleasure Bay. Bikes aren't allowed on the path around the bay or on the island — park 'em and take a walk. Watch wind surfers on the water or catch the sunset over Fort Independence, one of the oldest fortified sites in the country.
For more information about Castle Island see bostonfortindependence.com