Fort Warren, Boston Harbor Islands. Photo/New England Boating, Tom Richardson.

Fort Warren, Boston Harbor Islands. Photo/New England Boating, Tom Richardson.

The Boston Harbor Island Alliance is offering a Winter Fortress Cruise on Boston Harbor, February 22, 2014.

Families, history enthusiasts and weekend adventure seekers alike will enjoy a boat ride to Georges Island, ranger led tours of historic Fort Warren, craft activities for the kids, and the opportunity to simply get outside and explore.

The boat departs Long Wharf North in Boston at 11:00 a.m. and returns at 2:30 p.m. Advance ticketing is encouraged as space is limited.

Tickets can be purchased online here.