Boat Tours

Gundalow Company. Sail the Piscataqua River in a flat-bottom gundalow (a type of barge) built at Strawbery Banke. Help the crew set sail, steer the vessel, and trawl for plankton while learning about the region's history from an onboard educator. Passengers are welcome to bring food and beverages. 60 Marcy St., Portsmouth, New Hampshire, 03801. 603/433–9505; www.gundalow.org. From $30. Closed early Oct.--late May.

Portsmouth Harbor Cruises. Tours of Portsmouth Harbor and the Isles of Shoals, inland-river foliage trips, and sunset and wine cruises are all in this company's repertoire. 64 Ceres St., Portsmouth, New Hampshire, 03801. 603/436–8084; 800/776–0915; www.portsmouthharbor.com. From $18. Closed Nov.--early May.