There are some incredible dive sites with a great chance of seeing the famous Mola Mola or Oceanic Sunfish around.
Nusa Lembongan and Nusa Penida islands have very healthy coral reefs around them, with great bio-diversity most dive sites are 10-20 minutes away by boat. There are a range of hard and soft corals around Nusa Penida with many gorgonian sea fans along the steep walls with all sorts of critters from macro to pelagics, and large schools of fish.
There are some incredible dive sites with a great chance of seeing the famous Mola Mola or Oceanic Sunfish around August to October. While the Mola Mola live in very deep water, during August to October they come up to shallower waters to be cleaned of their parasites. Divers come from all over the world to Bali for the chance to see the Sunfish.
Crystal Bay Dive site is one of the best places to see the Mola Mola Sunfish, caution currents can be strong here so be sure to consult the local dive shops for safe diving.
Mantas can be seen all year round, with Manta Point Dive Site being one of the best, attracting several Mantas at any one time.
Dive Sites around Nusa Penida usually have strong currents, and most dives tend to be drift dives, thus this area is not recommended for beginners.
Weather - Average temperatures reach up to 32°C during the day with night time temperatures dropping to 24°C-28°C
Water Temperature - Average water temperatures range from 24°C - 29°C, however, waters around Nusa Penida can be cold for the region primarily due to colder waters flowing up from the deep, temperatures have been known to drop as low as 22°C.
Visibility - Visibility ranges from 15m - 25m on average and on occasion can go up to 30m
Aquatic Life - Mola Mola (Sunfish), Manta Rays and Reef Sharks can be seen all year round
Airports - Denpasar International Airport, Bali