Lobster and clams on the Cape in early November

[California Sunshine]

Will be visiting the Cape (Orleans) in early November for several days and would really like to enjoy a steamed/boiled lobster for lunch or dinner. Also, some moist fried clams with bellies. I know most if not all of the clam shacks close down early in the fall. Can you suggest a restaurant that would satisfy the cravings of a girl from Dorchester, now a woman living in California? Willing to drive, perhaps Provincetown? Thanks for your help!