FOR CAR-FREE TRAVEL - Throw all your gear in a beach bag and head for the T. It doesnt get any easier than taking the Blue Line to Revere Beach, created in 1896 as Americas first public beach. Walk straight down Beach Street to the sand and surf. The Newburyport/Rockport commuter rail line offers some additional options. Head to Manchester-by-the-Sea and walk to the squeaky sands of Singing Beach, or go to Ipswich to pick up the Ipswich Essex Explorer bus (ipswichessexexplorer.com), which will deposit you at Crane Beach (left, the $5 round-trip fare includes the beach fee). The bus runs weekends and holidays from June 16 to September 3.