10 a.m.-3 p.m.: Harbor Islands Treasure Hunt
Boston Harbor Islands State Park MDC (727-5290), Bay State Cruises, Long Wharf (723-7800)
Hunt for pirates' treasure on Bumpkin, Lovells, Gallops, Grape and Peddocks Islands. Treasure maps at island docks, Boat transportation $6, program free.
10:30 a.m.-Noon: Discover Boston Harbor: Then and Now
On the steps of Old City Hall, 45 School Street
A guided walking tour of the historic waterfront, admission $5.
Noon-2 p.m.: A Sailor's Diet
Boston Tea Party and Museum, Congress Street Bridge (338-1773)
Sample 18th century ship fare, admission $3-$6, under 5 free.
Noon-2 p.m.: Puppets on Parade
Noon-2:30 p.m.: New England Clambake Cruise. Spirit of Boston, Rowe's Wharf (569-4449).
Noon-4 p.m.: Fort Independence, Castle Island
South Boston (268-5744)
Tour a 19th-century seacoast fort.
1 p.m.-4 p.m.: Tour US Coast Guard Base and Ships
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