This is one of my very first underwater photographs. It was taken during March, 1995 in Roatan, Honduras. The sponge is attached to the hull of the Prince Albert wreck which sits in a small channel between the Fantasy Island and Coco View Resorts.
The photograph was taken with an Aquashot II underwater housing. It used disposable film cameras sold in any convenience store. Alternatively, you could go to your local dive shop and find the ones with the SCUBA flag on them. There was no other difference besides the paper wrapping with the logo.
I love shooting digital, but shooting film was an experience. You got at most 36 shots per dive, and you never knew if any of them were any good until you got home and had the film developed. The Aquashot II had the added challenge of not having a real viewfinder. You got as close as you could and aimed through the plastic cross-hairs on top. Hopefully, the camera's lens was wide enough that the subject was in the field of view.
Still, I did get a few interesting shots back then using what I'm sure most people today would consider to be antiquated equipment.