Thursday, Aug. 18. Join us for a trip to Castle Island in Boston Harbor and enjoy the sights and sounds of a day by the sea. Castle Island is a great place to walk along Boston Harbor. This 22-acre land-bound island features terrific walkways, Fort Independence and view of Boston Harbor and Logan Airport. Sullivan’s offers delicious seaside eats including lobster rolls, fried foods, ice cream and cold drinks. You can walk an entire look around Carson Beach on a paved walkway along the rocks. The bus leaves the COA at 10:30am and returns by 3pm. Cost is $12 for transportation; lunch is on your own. Reservations required, please contact the COA at email@example.com or 508-358-2990 to sign up!