JATIN and I just got back from a fabulous, too-short trip to Cozumel, an island off the Yucatan coast of Mexico (more about that later). For now, I wanted to share a few photos I took while snorkeling right by Money Bar, not far from where we were staying. The marine life is so plentiful that you can literally step off the beach and stick your head into the water and be surrounded by the most colorful fish. (The last one was taken at Playa Chen Rio, on the eastern side of the island.)
I took the photographs with my old digital camera, my trusty Canon G9, in an underwater housing—just a plastic casing, really—I bought at B&H.
A magnetic Blue Tang
An unknown blue fish and an Angel fish
Angel fish burrows into the coral
A school of vibrant Grunt Fish
A fluttering fishie
The Grouper just melded into the sandy bottom
Grunt fish close up
This sargeant major was fearless; it came right up to me, and I took this picture just before it took an exploratory nibble of my calf!
EST / IST 
These are stunning Jayati. I had seen those underwater casings at BH…gotto get me one of those
Thanks Shaunak! My dream is to get a camera that allows me to take photos while diving–but those are crazy expensive.
I thought there were similar waterproof casings for SLRs too