I've always fancied trying to get ashore at Bishop Rock if I ever got down that way. There would be even trickier given the constant swell that's big even on a good day.
I envisaged jumping in with a drysuit, impact vest, climbing helmet etc to take a line across or even floating a small dinghy down from a line off the boat.
You could get in trouble though without permission. Does Trinity House own it? They get a bit possessive about their ltho's.
There was an episode of Coast where they went ashore at the Needles in a boat, worth watching just for reference.