April through December, we are open Tuesday through Sunday, from 1 to 5pm or by appointment. January through March, we are open Thursday through Sunday from 1 to 5 PM. The Custom House Maritime Museum is always FREE for current members, individuals with current military or USCG cadet ID and children under age 14 (with adult), admission is a $5 suggested donation for all others. Admission is by donation on Sunday. Telling the stories of New London's waterfront, the Custom House offers lighthouse tours and boat trips, an annual chowda'fest, artifacts relating to local lighthouses, US Customs and the Amistad, along with changing exhibitions and a Museum Shop.