The deck is a venue that is open most nights. There are 2 bars, lots of indoor and outdoor seating, and a large stage that features a variety of bands. It is "private" so you will have to buy a $5 "membership" the first time you go. It is definitely worth it. The drinks are cheap, the staff is good, and the music and venue will keep you coming back.
Live music and great outdoor space. Jamestown is a really cute little town with brick sidewalks and cute shops