This little hidey-hole used to be a wharf for fish-rearing types and pleasure boaters to hoist their vessels atop the water, but is mainly used now as a kind of pic-niccy type affair for blokes and birds who want a sit down on the two benches and relax.
Once you've found it, as i said in the waypoint, you could have a look at the river now in front of you or, for the peckish among you, take a quick trip up the hill a tiny bit and have something to eat or drink at the two establishments. Nice place, eh?