Come scuba diving in Puerto Morelos Mexico. It is a national park, here you can find the 2nd largest barrier reef in the world. You will dive with certified guides who are allowed to work in this area. Beginners can dive in the shallow waters with the beautiful reef and for the advanced divers there is a beautiful wreck, often visited by the spotted eagle rays. They love the current above the wreck. But instead of diving in the ocean, you can also go on a roadtrip inland into the jungle, and dive in the crystal clear water of one of the cenotes. Or do a dive with bull sharks, they are in this area every year to give birth to their young ones from November to February.
