Four decades ago I was a young sailor in the Navy and our ship stopped in Nassua for a liberty call. Good times. A few of us literally stumbled across this bar and restaurant and it's still there yet today. I've been back to this same place many times over the years and it never disappoints. Not the cheapest but I think they have some of the best seafood on the island. Laid back vibe with a view over the marina. Short taxi ride from Atlantis too.
http://thepoopdeck.com/
http://thepoopdeck.com/