Description: From our hotel we went snorkelling on the Mayan Reef. I tried taking some underwater pictures using a camera in what is basically a plastic bag. These are Blue Tang This didn't work that well as the pressure of the water on the bag interfered with the autofocus. However for a few pounds it did allow me to get some pictures of our day out, even though they aren't very good. Date: 19 February 2010, 18:00. Source: Blue Shoal 3 Uploaded by tm. Author: Tony Hisgett from Birmingham, UK. Camera location20° 52′ 16.18″ N, 86° 51′ 10.46″ WView all coordinates using: OpenStreetMap 20.871160; -86.852905.