Diving Nusa Lembongan with Ceningan Divers while on vacation in the Nusa Islands. With more than 20 dive sites to choose from, Nusa Penida offers one of the largest marine diversity in the world. Here you will find nearly 3000 different species of marine life and approximately 500 different types of coral. We also have a healthy population of manta rays and our seasonal mola sightings (from mid June to late October).