A cave diver at the exit of an underwater cave

Photo by Mikhail Vedyokhin · CC BY-SA 2.5

CavePSAI

Cave Decompression Diver

Last updated September 21, 2026

Centres that teach this course

1 dive centre in the directory publish a price for this exact certification, checked Sep 2026. Each centre's own wording is shown beneath its name. Ranges cover whole-course prices only — where a centre charges per day or per dive, its rate is listed separately below, since a daily figure is not comparable with a course total.

Priced per day or per dive in US Dollar — see below.

    Charged by the day or dive rather than as a course price:

    • Protec MexicoMexico
      Cave Decompression
      1 student$470/day→ $1,880 for the 4-day minimum
      2+ students$420/day→ $1,680 for the 4-day minimum each
      $470
      per day

    Same training under a different agency

    12 centres

    A separate set of centres, teaching Technical Cave / Cave Decompression under a different agency. These are not the same certification — the standards and the card differ — but they cover the same depth and scope, which is why centres price them alike. Every row here names whose rating it is, and none of them is counted above.

    $600 – $1,100across 2 centres pricing in US Dollar

    Charged by the day or dive rather than as a course price:

    THB 59,000across 3 centres pricing in Thai Bahtfrom ≈ $1,760
    One centre publishes a price in Euro.

    Same tier, agency not stated

    1 centre

    These centres publish a price for Technical Cave / Cave Decompression, but their own wording does not say which agency's certification it buys — many teach several and name the card only once you enquire, and some price one course for either agency. The figure is comparable; the certification is not identified, so we do not guess at one.

    Priced per day or per dive in US Dollar — see below.

      Charged by the day or dive rather than as a course price:

      • Darkside DiversMexico
        Deco Cave
        $280/day→ $1,120 for the 4-day minimum
        $280
        per day

      These prices are not like-for-like. Two centres can charge very differently for the same certification because they include different things. One price may cover twinsets, stages, deco gas and cylinder rental for every training dive, a dedicated classroom for the theory, boat or transport to the site, and the agency's registration and materials; another may be tuition only, with all of that charged separately — or the other way round, with a centre bundling in extras the first leaves out. Class size, whether the course is one-to-one, and how many days are allowed for it move the figure too. Check what each centre's price includes before comparing them, and confirm with the centre before booking.

      Consumables are usually extra. Sorb, helium, O₂ and other fills, park and cenote fees, certification fees and rental are commonly charged on top.

      Packages combining several certifications, upgrades from an existing one, and open-ended day rates are excluded — none of them is the standalone price of this course, and including them would move the figures away from what a new student can actually book.

      Instructors Teaching This Course

      Dive Centres Offering This Course

      We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.

      Common questions about PSAI Cave Decompression Diver

      How much does PSAI Cave Decompression Diver cost?

      Every centre in the TecDiveTools directory that publishes a price for PSAI Cave Decompression Diver charges by the day rather than for the whole course. Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.

      How long does PSAI Cave Decompression Diver take?

      4 days, based on the durations 1 centre publishes for it. 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.

      What is the equivalent of PSAI Cave Decompression Diver in other agencies?

      At the same tier in TecDiveTools' cross-agency comparison: TDI Cave Decompression, NSS-CDS Tech Nitrox and Cave Decompression Diver and IANTD Technical Cave Diver. They cover comparable training, but each agency sets its own standards, depth limits and certification card, so they are comparable rather than interchangeable — check which one your next course accepts.

      TDI Cave DecompressionNSS-CDS Tech Nitrox and Cave Decompression DiverIANTD Technical Cave Diver

      Where can I take PSAI Cave Decompression Diver?

      1 dive centre and 1 instructor in the TecDiveTools directory teach PSAI Cave Decompression Diver, in Mexico. Each is listed further up this page.

      Does the price of PSAI Cave Decompression Diver include gas and equipment?

      Not always — it varies by centre. Certification fees, equipment rental and boat or site fees are commonly charged on top of the course price. Each centre's price list on TecDiveTools shows what it notes as included.

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