I bought myself an underwater disposable camera for the trip, and tried snorkeling three times.
The first time was at Puerto Vallarta, Mexico. The others you will have to click further for!
Those two pictures were from Bruce Thompson's digital camera. He took about 6 Gigabytes, which he may send, but which will not all appear here.
We snorkeled on the other side of those rocks. I'll spare you the not very good fish pictures.
Then we went to a beach, Las Animas, and swam pleasantly for an hour.
Two more shots, the first a shot of the ship that took us there, and a shot from Bruse of me with a butterfly which let me pick it up (Boy, the colour changes when you look from adifferent angle...):