Pink, I was a scuba -diver a few? years ago. Then used to travel around the Caribbean. Didn't need to scuba: just snorkel. Take a plastic "Zip-Loc" bag filled with left-over breakfast toast tucked into your swimwear,,open it about 20' underwater and see what happens........WOW!!!!
By the way, Pink, I think I exaggerated when I said snorkeling to 20'...I'm not that good! Around 10' or a little more..especially if there's some coral around.....anyway, enjoy.