Can't remember who but one of my SoM folk were asking about this. A quick shufty on t'interweb pulled this up;
A site to rival Bo Fascadale, but in a more sheltered location. Just of the cliffs at Riga, this rocky pinnacle plummets from within 3 meters of the surface down to over 40 meters. Fascinating if unusual species of anemones, tunicates and nudibranchs to be seen as well as all the usual marine species. The south side is perhaps the most dramatic, but there is good diving to be had all round the pinnacle. Gin clear waters and abundant fish life make this another remarkable and un-forgettable dive.
This is an underwater cliff face down to 25 meters, making it an ideal second dive after the pinnacle. The invertebrate life, especially nudibranchs is very varied and there are unusual species of sponge, anemones, and tubeworms. The scenery is quick breathtaking and the clear waters and abundant fish life make it another memorable dive.
It was a good dive and one that's definately getting done this time round again