Parking might be an issue . . . I know the lot at Heights Beach are open (and staffed) until 11 . . . the others (heading East - Bristol Beach and further down Menahaunt might be locked as early as 9 pm . . . the Town seems to be inconsistent but Id hate to see anybody locked in overnight
Might be better off heading to the West of Falmouth Harbor - along surf drive - a great spot might be at the mouth of the Trunk river (a small herring run - aren't they all) - there is a small parking area along the bike path that is never locked - room for 20 cars right at the edge of the ocean. I'm going to try and post the spot from Mapquest - but I'm sure Professor M and some of the other locals know of what I speak - you can see the path leading off Oyster Pond Road toward the water in the attached map.
My weekend place is only a couple of miles away - I've been doing some long deferred maintenance (paint, lawn, etc) if I get it done maybe I'll have the crew over for burgers 'n dogs . . . I think the only one from the "I'm In" crew that has met me is Vic . . .
http://mapq.st/Oy7OR2