From what dates is the seafood bar (lower level, outside) open?

The lower deck is not open any longer, due to the construction and right of way issues.

The lower deck is open around the time of the Rhody festival about the middle of May. It closes after the wooden boat festival in September.

Just walk up the 50 steps.

I think he means outdoors (as downstairs) vs. Inside (upstairs).

There is no lower level ! Just upstairs.

I don't know. You should check their website or call.