Prescott Park Arts Festival. This outdoor festival presents theater, dance, and musical events from June through August. 105 Marcy St., Portsmouth, NH, 03801. 603/436–2848.

Discover Portsmouth. Part welcome center and part museum, Discover Portsmouth, operated by the Portsmouth Historical Society, is where you'll not only learn about daily events, history tours, and walking trails, but also see art and historical exhibits. Sign up here for a guided walking tour, stock up on city maps, and learn about the Portsmouth Harbour Trail, a route that passes more than 70 points of scenic and historical significance. 10 Middle St., Portsmouth, NH, 03802-0239. 603/436–8433. Free. Apr.–late-Dec., daily 10–5.

Portsmouth Black Heritage Trail. Important sites of African-American history are along the self-guided walk on the Portsmouth Black Heritage Trail. Included are the New Hampshire Gazette Printing Office, where skilled slave Primus Fowle operated the paper's printing press for some 50 years beginning in 1756, and the city's 1866 Election Hall, outside of which the city's black citizens held annual celebrations of the Emancipation Proclamation. Call about guided tours. Discover Portsmouth, 10 Middle St., Portsmouth, NH, 03802. 603/380–1231. Donations welcome.

On the Seacoast Trolley Company guides conduct narrated tours of Portsmouth, Rye, and New Castle, with views of the New Hampshire coastline and area beaches. The 17-mi round-trip, which you can hop on and off of at several stops, runs from mid-June through Labor Day, 11 to 3.

Portsmouth is also served by the Downtown Loop Coast Trolley, which makes numerous stops at popular downtown attractions, public parking areas, and the waterfront. This service operates from late June to late August, from 10:30 to 5:30 p.m.