Studio Sea is a 'club', but it is for families. They sometimes do game shows there (last September DD and DH won Mickey Mania). It is fun, even to just watch. They sometimes have family dance parties, but most of the time there doesn't seem to be very many people in there (except for the game shows).
My kids always go to the kids clubs after dinner, they usually do something fun around 9:00/9:30 each night with the kids. It is a nice time to just relax with DH and have some grown up time.
Some evening they have Deck parties, which are fun (but crowded). There are characters at this activity.
Have a great time!
DJ