Geko Dive is one of Padangbai's best-known dive centers, teaching PADI courses and guiding fun dives from Jalan Silayukti since 1997. Instruction runs in English and French, and the shop has a reputation for taking experienced divers to Bali's more challenging sites with knowledgeable local guides.

Local dives cover the Blue Lagoon and Shark Point, with the advanced Gili Tepekong, Gili Mimpang and Gili Biaha shark caves a short boat ride away for divers comfortable in current. Day trips reach the USAT Liberty wreck at Tulamben and Nusa Penida's Crystal Bay and Manta Point. The shop holds a 4.7 rating.