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TDI Cave Sidemount in worldwide: 35 instructors on TecDiveTools, with the agencies and courses each teaches, and a summary of what students say.
TecDiveTools lists 35 instructors teaching TDI Cave Sidemount worldwide.
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). 27 of these 35 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, 27 have a written synthesis of what reviewers say about them. How we read and count reviews.
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About the course
ERROR: Course not found in official TDI Part 2 diver or Part 3 instructor standards documents. While 'Cave Sidemount' is referenced in instructor profiles and equivalency charts, there is no published course standard with this exact name. This may refer to an advanced specialization combining Cave and Sidemount training, or an instructor-specific program taught outside the formal standards. Verify with TDI directly.
UNVERIFIED
35 instructors on TecDiveTools teach TDI Cave Sidemount worldwide: Mexico (21), United States (10), Thailand (3) and Philippines (1). Each is listed above.
One centre in the TecDiveTools directory publishes a whole-course price for TDI Cave Sidemount worldwide: Deep Dark Diving, at $1,100. 2 centres charge by the day instead, which is not comparable with a course total. Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
Between 2 and 6 days, based on the durations 4 centres publish for it worldwide. The time depends on the centre's schedule, weather, and how quickly the required skills are demonstrated — agencies set a minimum number of dives, not a fixed number of days.
At the same tier in TecDiveTools' cross-agency comparison, instructors worldwide also teach IANTD Adv. Cave - Sidemount Diver (37). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.
