Pot at rear had a spigot for pouring cupfuls of clam juice (this was weird stuff to a ten-year-old from the midwest). Note also the metal mats in the background, laid on the sand to aid the movement of the boats to and from the water.
Dad didn't notice Bill and me in the shadow until we pointed out ourselves when reminiscing twenty years or so later. At the right edge of the photo is a white concrete base with what appears to be a pair of cable guides on top. This could be part of the electric winch that was used to pull the boats from the water to their parking spaces.