The Isles of Shoals are a cluster of small islands about ten miles offshore, split between New Hampshire and Maine. They are accessible by excursion ferry from Portsmouth's waterfront, with Isles of Shoals Steamship Company running regular summer services. The round trip takes most of a day; the boats stop at Star Island, where the historic Oceanic Hotel operates as a conference centre.
The islands have a long history as a fishing community, an artists' colony — Childe Hassam painted here extensively in the late 19th century — and a resort destination before the ferry traffic declined. Today they draw birdwatchers (the islands are important seabird nesting habitat), divers (rocky underwater terrain and good visibility), and visitors interested in the atmospheric combination of open ocean, historic buildings, and relative isolation. The views back toward the New Hampshire and Maine coast are excellent on clear days.