In reply to flopsicle:
Congrats on the camper - the world's yer lobster.
Seaside bouldering places I've been to are:
- Reiff. Absolutely stunning place, beautiful hard sandstone, better for routes than bouldering, but there is some there. Not exactly a beach, more a rocky coast, but quite accessible.
- Cae Du. An actual beach. Some alright bouldering, not a huge amount and tidal. Fits the bill, I'd say, if the tides are right.
- St Bees. A very rocky spot, no beach, it's a wave-washed platform but pretty much non-tidal. The climbing is magnificent, loads of it. The approach is a bit steep and scrambly, requires a bit of confidence (but no abseiling). I have a vague recollection of going to another area with a pebble beach, but not finding a single problem.
- Codgy Point, St.Ives. Shite.