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Technical diving in Indonesia: 46 instructors on TecDiveTools, with the agencies and courses each teaches, and a summary of what students say.
TecDiveTools lists 46 instructors teaching technical diving in Indonesia.
Listings are ordered by how much evidence exists about their technical diving, not by a star rating, with any paid Featured listing shown first and marked as such (how rankings work). 15 of these 46 carry reviews we have read and classified as being about technical or overhead training. The count excludes recreational certifications by name, so a busy resort does not outrank a one-instructor cave operation on the volume of its reef trips. Separately, 11 have a written synthesis of what reviewers say about them. How we read and count reviews.
Looking for the dive centres instead? Dive centres in Indonesia.
TecDiveTools lists 46 technical diving instructors in Indonesia: Gili Trawangan (14), Bali (12), Jakarta (9), Sulawesi (8), Alor (1) and Gili Air (1), and 1 more region. The directory is not a census — it lists the instructors we have been able to verify, and grows as more are added.
Indonesia sits in the heart of the Coral Triangle, the region with the greatest marine biodiversity on the planet, so the dives you train on are exceptional in their own right — Raja Ampat, Komodo, Bunaken and Lembeh in North Sulawesi, and the walls and currents of Alor. It also has cave diving: the karst of southeast Sulawesi holds hundreds of flooded caves, most still unexplored, with clear water, little flow and warm temperatures all year — conditions closer to Mexico than to most of Asia.
TDI (42), IANTD (7), RAID (5), SSI XR (4), PADI TecRec (3) and UTD (1), counted by how many of the 46 instructors listed in Indonesia teach each. 10 teach more than one agency. The agency sets the standards and issues the card; the instructor sets the price and schedule.
Published whole-course prices at dive centres in Indonesia, by training tier — Extended Range: IDR 10,000,000–20,700,000 (7 centres); Advanced Nitrox: IDR 7,250,000–15,000,000 (6 centres); CCR Air Diluent / MOD 1: roughly US$1,250 to US$1,800 (5 centres, converted from local prices); Intro to Tech / Essentials: IDR 5,050,000–7,500,000 (5 centres); CCR Normoxic / Mixed Gas / MOD 2: roughly US$1,250 to US$1,800 (5 centres, converted from local prices). Each figure is a centre's own published price; they differ mainly in what they include (gas, equipment, dives), so compare inclusions before numbers. Every course page lists the individual prices.
Yes — 11 of the 46 instructors listed in Indonesia teach cave or cavern courses. Most often: TDI Cavern (10), TDI Intro to Cave (10), TDI Full Cave (8) and IANTD Cavern Diver (3).
Yes — 21 of the 46 instructors listed in Indonesia teach rebreather courses. Most often: TDI Air Diluent CCR (19), TDI Air Diluent CCR Decompression Procedures (17), TDI Helitrox CCR (8) and TDI Helitrox CCR Decompression Procedures (8). CCR training is unit-specific, so check which units a listing supports.
Seasons vary by island. Broadly, Bali and the Gili Islands dive best in the dry season (roughly April to November), Raja Ampat's calmer months are roughly October to April, and North Sulawesi dives well most of the year — check the region you are travelling to.
Mostly 27–30°C, but upwellings around Nusa Penida and Alor can drop the temperature into the low 20s °C or below without warning, so carry more insulation than the surface temperature suggests.
