Siren Diving is a boutique PADI dive center on Nusa Lembongan run by a mixed team of Europeans and locals since 2015. The center positions itself as your dive buddy in Indonesia: high safety standards, small groups, and a laid-back atmosphere, with courses taught in English, French, Spanish and Indonesian.

Trips cross to the Nusa Penida Marine Park for drift dives at Crystal Bay and the manta cleaning stations of Manta Point, with mola mola possible from July to October. Snorkeling and freediving round out the offer. The center holds a 4.8 rating from about 140 reviews.