I can’t believe no-one has posted regarding this site before. Perhaps the most spectacular site on the Lleyn Peninsula, with cracking views out to sea.
Not the easiest place to find. Park at Cilan Uchaf farm (there is a large car park), walk down the track to your left and keep going towards the sea, climbing any wall you come up against. Keep your eyes to the right, as this is where the chamber will appear on your right.
The chamber itself is typical of those in North Wales, but the views are anything but.