old Waikiki club, da Swamp

My oldest brother hung out at a place called da Swamp in Waikiki when he visited there in about 1963. This sweatshirt, which was handed down to our daughter sports a green 'gator with a mug of beer and some kind of hat.
It must have been a pretty big joint as Frank Zappa performed there in April of 1966. Any old timers remember this place?