The best bouldering to be had is near the pub in the far north near the sluice. Park at the pub and then cross a bridge before following a short path to a scramble down the rocks (2 mins). There are some easy climbs and then some harder- quite cool-looking high balls to be had here. The landings are tidal shelf, so you'll need a few pads to make it feel nice. There are a couple of things that look pretty good and the rock isn't bad. Further south near the sea stack seemed a bit more esoteric, although I'm sure fun could be had here and there. Up near the sluice seemed like the main event though.