I received a personal email on how to attract fish at El Coz or other hotels when snorkeling (on slow days). Thought I'd throw this out there for anyone interested. There are several retail items, but the best I've used is TRIDENT FISHIN´ CHIPS FISH FOOD. They cost about $5 and are simply a little fish shaped container that lets the food slowly release from inside. Just tie it on your suit or hold it. You will be amazed :) They don't make a mess and are very user friendly :) Crackers and other items from the snack bar are ok, but leave a mess most of the time. You can pick up the Trident product or others at most dive shops, on the net, and I would assume at most of the dive shops on the island :) Hope this helps.