trained and NEVER do feeding.
It is extended that in winter bull sharks go to Playa del Carmen to eat, that's the best time to be able to see them. But lastly some dive centers take divers no more than 300 meters or less to feed the sharks, you know, sharks feeded by divers, what a nuisance !!
It must be exciting but divers are now something strange to sharks and in general to marine life, what if the sharks, and one of the most dangerous sharks, make a relation between divers and meal? Besides the distance to the beach is so close that swimmers will pay the consecuences. We are about to hear about an accident if this situation does not change, it would be the normal consecuence, and nobody at Playa del Carmen, RM, etc...would be strange, that day the dives will be damage in the area for sure.
Besides, bull sharks do not alert when they are going to attack, other sharks first make some approximations, beats and bites, but bull sharks will go directly to you, and there were no place to hide. Some people say that we don't taste well for sharks, but we are an easy prey...
I hope you dive as ever to see whatever it appear, please do not feed the sharks, do not get confidence on these wild animals, and do care for marine life. Sharks are necessary, but like they are.
Peace to everyone,