Sometimes listening to teenagers is a really good idea. The teenage parking attendant at Chauncey Creek told us of a park to go to down the road, Fort Foster. When we got there the man at the gate had a wicked thick Maine accent which sounded (in rough translation) like he was assuring us that it was well worth the $10 fee to go in the park.
He was right.
It was an amazing place, the water was chilly and dark, and free of people.
Thank you nice teenager.