Atlas of Skills / Freediving

Learn Freediving in Dean's Blue Hole, Long Island

A 202m sapphire shaft steps from the beach, where Trubridge's invite-only Vertical Blue is the most prestigious meet on Earth and world records fall.

Long before it was a sport, sponge divers rode a stone weight, the skandalopetra, as deep as thirty metres on one breath. The sport of going deep was born in Italy. In 1949, off Capri, Raimondo Bucher descended to 29 metres before a commission, and in 1950, answering a challenge from the Neapolitan Underwater Club, he reached 30 metres, the first official freediving world record. Enzo Maiorca of Syracuse reached 50 metres in 1961, and his rivalry with Jacques Mayol inspired the film The Big Blue. Today the sport’s deepest divers still gather each July at Dean’s Blue Hole in the Bahamas, 202 metres deep, for William Trubridge’s Vertical Blue, where in 2025 Alenka Artnik equalled the deepest constant-weight dive ever made by a woman, 123 metres on a monofin.

Where the world comes
Strong living community

Dean's Blue Hole, Long Island, Bahamas

A 202m shaft steps from the beach, where Trubridge's Vertical Blue is held and world records fall.

Season: Apr-Jul · Beginner -> Advanced / Competition

Two operations on one hole, and one of them is invitation-only — so what you would meet is a competition field rather than a class, with William Trubridge named and teaching. Nothing outside the sport has designated the place, and nobody has counted who is here outside the meet.

Living sceneMeccaNamed mastersRecord holder
Where it is taught — hand-verified

Schools in Dean's Blue Hole, Long Island

Researched by hand against each school's own course pages · Arnaud Callier. No school paid to be listed.

Named in this town

The people this craft is known by here

These names belong to the town. Where we have been able to tie one to a particular school, it is on that school's card above; where we have not, we have not guessed.

What you walk away with

The credential that counts here

AIDA 1-4 / Molchanovs Wave 1-3 -> Instructor · Certifying body: AIDA / Molchanovs / Apnea Academy / SSI

That is the one an outside body sets and marks, which is what separates it from a certificate a school prints itself — that proves you attended. We name which of the two a course actually gives you; ask the school the same question before you pay, and judge the answer yourself.

Write me a note about this one — how you'd love to learn it, and where.

If this box never loads, the same note reaches me at arnaudcallier@pm.me.

Same discipline, other sources

Also for Freediving

Dahab (Red Sea), Egypt
Kalamata & the Mani, Greece
The Italian Mediterranean, Italy
Why you can trust this map

How a place gets on here, and what we do when it stops being true

There is a real difference between a school that teaches you and a good-looking website, and too much of the internet is the second kind. Four instruments do the work, and every one of them is visible on the page you are already on.

  • We grade it in public, and publish what is missing. The Measure is five plain questions, not a score: is there a teacher we can name, can a stranger get in, will you be learning beside other people, is the craft alive in the place, and is there enough there to keep you going for years. An empty dot tells you which one we could not answer and why. A craft nobody has graded shows no meter at all, because an absence is not a zero.
  • We print what we checked and did NOT list. Every swept craft carries the places we looked at and turned down, each with its reason. That list is the part no marketplace prints, because a rejection is where the money is.
  • The claims are read back to their sources every night. A robot re-reads every link we publish against the school's own page each night, and every price and course name we have written a test for. page. When one stops matching three nights running, it is flagged for a human — and an entry that cannot be confirmed comes off. It is never softened.
  • Where we are not neutral, we say so above the recommendation. We run one paid week a year, with one teacher. His entry says that before it says anything good about him, and prints the way to reach him without us, at his prices.
  • Nothing here has been stood in yet. An open sheet means desk research, carefully done. No place on this map has been visited and dated by us. When one is, the check will carry a name and a date — and until then, the grade says so in the dots it leaves empty.
  • Nobody pays to be here, and nobody can pay to be left off. No commission, no listing fee, no tourist board. The order is the strength of the community, never the size of the wallet.
Before you trust any school — mine or anyone else's — ask these five things
  1. Who actually teaches it? Can you find them by name, with a track record you can check yourself?
  2. Is the craft alive in that place, or is the school the only thing there? A real scene has more than one good option.
  3. What exactly do you walk away with — a recognised qualification, or a certificate they printed themselves? Ask which.
  4. Can you speak to someone who did the course? A real person, not a testimonial on their own page.
  5. What happens on a bad day — weather, an injury, a teacher who doesn't show? A serious place has an honest answer.

If a place dodges these, that's your answer. It costs you nothing to ask, and it tells you everything.

This is the short version. The full method is here — the six questions, in order, for any craft anywhere.