A cave diver at the exit of an underwater cave

Photo by Mikhail Vedyokhin · CC BY-SA 2.5

CavePSAI

Cavern 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
      Cavern
      1 student$420/day→ $2,100 for the 5-day minimum
      2+ students$370/day→ $1,850 for the 5-day minimum each
      $420
      per day

    Same training under a different agency

    31 centres

    A separate set of centres, teaching Cavern 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 – $1,320across 5 centres pricing in US Dollar

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

    • Elite Divers InternationalMexico
      Cavern DiverIANTD
      $275/day→ $825 for the 3-day minimum
      $275
      per day
    • Third Dimension DivingMexico
      Cavern DiverIANTD
      $295/day→ $885 for the 3-day minimum
      $295
      per day
    • Cave AdventurersUnited States
      CavernTDI
      Private class$450/day→ $900 for the 2-day minimum
      Group class$350/day→ $700 for the 2-day minimum each
      $450
      per day
    • Ghost DiversMexico
      Cavern DiverIANTD
      $330/day
      $330
      per day
    • Wolff DivingMexico
      IANTD Cavern DiverIANTD
      $300/day→ $1,200 for the 4-day minimum
      $300
      per day
    • ByMoMoDiveMexico
      Cavern DiverIANTD
      1 student$245/day→ $980 for the 4-day minimum
      3 students$205/day→ $820 for the 4-day minimum each
      $245
      per day
    • Divers UnderGroundMexico
      TDI Cavern DiverTDI
      1 diver$325/day
      2 or 3 divers$300/day
      $325
      per day
    • CDT Mexico (Cave Diving Training)Mexico
      CavernTDI
      1 student$300/day→ $1,200 for the 4-day minimum
      $300
      per day
    • Under The JungleMexico
      Cavern Diver (TDI)TDI
      private$345/day→ $1,725 for the 5-day minimum
      per diver in a group$295/day→ $1,475 for the 5-day minimum each
      $345
      per day
    • Go Dive MexicoMexico
      Cavern diverTDI
      private$330/day→ $1,650 for the 5-day minimum
      2+ divers$300/day→ $1,500 for the 5-day minimum each
      $330
      per day
    • Cave Diving AdventuresMexico
      CavernTDI
      $350/day→ $1,400 for the 4-day minimum
      $350
      per day
    • Green Divers TulumMexico
      TDI Cavern DiverTDI
      per person$235/day
      $235
      per day
    THB 20,000 – THB 35,000across 9 centres pricing in Thai Bahtfrom ≈ $597
    €800 – €1,000across 3 centres pricing in Eurofrom ≈ $897

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

    Priced per day or per dive in Indonesian Rupiah — see below.

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

      • Air Dive AlorIndonesia
        CavernTDI
        1 student, privateIDR 3,200,000/day→ IDR 6,400,000 for the 2-day minimum
        3 studentsIDR 2,400,000/day→ IDR 4,800,000 for the 2-day minimum each
        IDR 3,200,000
        per day
      One centre publishes a price in Mexican Peso.

      Same tier, agency not stated

      5 centres

      These centres publish a price for Cavern, 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.

      $500 – $600across 2 centres pricing in US Dollar
      €450 – €800across 2 centres pricing in Eurofrom ≈ $505
      One centre publishes a price in Thai Baht.

      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 Cavern Diver

      How much does PSAI Cavern Diver cost?

      Every centre in the TecDiveTools directory that publishes a price for PSAI Cavern 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 Cavern Diver take?

      5 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 Cavern Diver in other agencies?

      At the same tier in TecDiveTools' cross-agency comparison: TDI Cavern, ANDI Cavern, RAID Cavern, IANTD Cavern Diver, NSS-CDS Cavern Tech Diver, SSI XR Extended Range Cavern Diving and NSS-CDS Single Tank Cavern 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 CavernANDI CavernRAID CavernIANTD Cavern DiverNSS-CDS Cavern Tech DiverSSI XR Extended Range Cavern DivingNSS-CDS Single Tank Cavern Diver

      What course comes after PSAI Cavern Diver?

      The next step in PSAI's progression is PSAI Intro to Cave Diver.

      PSAI Intro to Cave Diver

      Where can I take PSAI Cavern Diver?

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

      Does the price of PSAI Cavern 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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