Bali has lots of great diving in spite of its relatively unknown status. Divers in Indonesia can observe a greater concentration of different tropical marine species than anywhere else in the world. New species are found regularly. The reason for such diversity is that Indonesian archipelago is strategically sited in the exact center of the oceanic area encompassing the Indian and Pacific oceans. This area (called Indo-Pacific) is home to the same species as those found in Hawaii and the Red sea. In Indonesia all types of species are flourishing together.

In September, the mythical Mola Mola, or sunfish as they are called, are regular visitors to the southeast coast of Bali. Currents here can be erratic, so diving is only for the more experienced divers. Tulamben Bay is famous for the wreck of the Liberty. Reef fish swarm the wreck like wasps and black coral growth is lush. This World War II wreck sits in 98ft of water off a black sand beach and is not to be missed. Menjangen Island is located on the northwestern end of Bali and is part of the Bali Barat National Park. Here coral walls drop dramatically to 98-197ft. The walls are broken by caves, crevasses and splits and are covered with huge gorgonian fans and barrel sponges. Bali is also the gateway to liveaboards for Alor, Moyo and Komodo.