We land at a beautiful beach for snorkeling. We snorkel almost every day, but today is really amazing. The visibility is good, so lots of fish schools and big blue parrot fishes can be seen. I get excited and leave the group without noticing. Near a small rock isle I see a black-tip shark underneath me in the water. Then there's another one, then another. Suddenly I find myself floating over 5 or 6 sharks which elegantly swim beneath me. It's an amazing experience. Suddenly I notice that I'm alone with them. I know that they are not dangerous, but I'm not sure if they know as well, so I carefully retreat and swim back to the group. I tell Heli about it, and we go back to the sharks, where she has the chance to take some photos. I'm really looking forward to see them.