We were stuck in New York and Montreal for most of June 1998. Climbing (and especially camping) at the Gunks was very much bug-ridden, which meant that the Adirondacks and New Hampshire would only be worse. Consequently we went to Acadia for a few days. It was my first experience with sea side climbing, which was kind of neat.
The best part of the trip, though, was climbing at Precipice cliff, which is a bit inland, but still overlooks the ocean. Imagine a view from a Gunks belay, with the green forest extending a mile out, followed by the blue of the ocean. We climbed the Standard Route (5.5 with good pro) and rappelled as it was getting dark. It may be worth a trip back, if we ever find ourselves around there again.
Ann on Wonder Wall (5.6) at Otter Cliff.