Wish we hadn't bothered going. It was the worst meal that we had and that was after they had tired to give us the wrong food twice!
You'll find that most of the beaches are turnings on your left once you've left Argassi. Our advice is to go past most of these and take a turning on your right to Dafni beach. It's about 2kn down a track and if you can get up the steep sandy hills it's worth it. Virtually deserted and the clearest water by far and great for snorkling as rocks to the far right end.
The best beach we found by far. Well worth tackling the steep sanding hills!