Diving Croatia - amphorae and pithoi Close to Cavtat it is possible to visit a site with around 1800 amphorae from around 300 AD as well as huge pithoi. Something completely different and so worth doing it!
Lembeh strait - the muck diving heaven One of the best places to dive with small stuff. Worth for everyone who loves nudis, crabs, shrimps, frog fish, octopus and so on. I only had great dives there, will be back :)
Revillagigedos liveaboard to the world's friendliest mantas and dolphins If you like big stuff - you will love the Revillagigedos, also called Socorro, to dive with sharks, mantas and dolphins, if you're lucky even with humpback whales :)
The cenotes around Tulum - not only for divers But even better for scuba divers. Maybe you would want to do a cave diving course? Or if not there is hundreds of places to do cavern dives in the beautiful cenotes of Tulum