My boyfriend and I did the half day kayak experience. It was over 60€ per person. The kayaking part was fun and we got interesting info about the island and the deserted part. However, the snorkeling was mwa. Only a bit of grey fish. After the kayaking part at 12:30 we were told that we could have lunch, which we expected (based on the pictures) much more of. For some people who did half a day tour (which was approximately 25€ cheaper) the tour ended now. In fact, it did for us too. We went for the lunch which was only a small toast and a small beer (not worth 25€, more like 10€ per person) and after that we asked whether we could take a boat earlier back to the marina. That was possible, so we went back at 14:30. I still don't really understand what was the purpose of the hours after 12:30 and would recommend you do to the shorter tour which was the same, but then without the "chilling time" afterwards.