Beware of leaving/exiting some of the hotel/casinos from the back/beach side. We were at the El San Juan eating lunch there with a few other couples > my wife and I walked through the pool area > past an attendant (gate Nazi) and onto the beach. We only stayed out there for 30 seconds and then attempted to re-enter the complex through the same gate. We were asked to display our "room key" which we didn't have (non-hotel residents) > we then had to walk "a long way", I mean a "long way", down the beach in order to find a public entrance back to the street. ( I guess I should have wore my blazer)