The Ogunquit Rivermouth is the best-known break in Maine. The wave breaks off Lobster Point and produces long, workable rights and fast, inside lefts. The quality of the wave varies with swell direction and the shifting sand bottom -- it works well up to a few feet overhead, after which large waves tend to get mushy as they start cresting on the outer shoal. At that point, many of the locals head up to Kennebunkport. Slightly to the north of the rivermouth, the main beach provides plenty of peaks. It breaks through most any tide, except absolute high.
Source: Ogunquit River Surf Guide