Arrived and radioed in. Told we were at "slip 32". No idea where this is, no signage. A stop at the fuel dock got us a dockhand to meet us there so we could find the slip. We arrived close to closing time so by the time we tied off and went to get the bathroom/shower key, everyone had left and the place was locked. No bath or shower access until the next morning. If a guest arrives, they should make sure they have a key before leaving for the night.