Measured in meters,
not slogans.
A field journal written by divers, for divers. Real depths, real gear data, real blackout protocols — no paid rankings, no hype.
Tested by spec,
not hype.
Three promises we keep — or we don’t publish the guide.
Real specs
Every fin stiffness, wetsuit thickness and computer alarm we cite is measured or quoted from the manufacturer. No “feels amazing” reviews.
Safety first
Shallow-water blackout kills. Every depth guide links to our safety protocol. We’d rather lose a click than a diver.
No paid ranks
Gear we link earns us a commission — clearly marked. It never changes what we recommend. Ever.
Divers, not demigods.
Every number below is a real person who sent us their logbook. PB = personal-best constant-weight descent. Submit yours — it’s free.
Tom B. — 34, mechanic
“First time I hit 80, I blacked out at the line. Three years of protocol training later, 83 felt calm. The community here is the only reason I’m still diving.”
“My first open-water blackout scared me off for a year. The buddying system here got me back in the water.”
“The Arch nearly ended me at 54m. Now I train the line with a meter to spare. Equalisation is everything.”
“I shoot freedivers because the silence underwater is the only place my head goes quiet.”
“Numbers don’t lie. I log every dive so the next me knows what’s actually possible.”
Gear we
actually buy.
Real shops we’ve ordered from. Buy through our link and we may earn a commission at no extra cost to you. Rankings are never for sale.
“The ocean doesn’t care about your ego. It only answers one question: are you calm enough to come back up?”
Fresh from BlueHole
New guides, stories & gear — refreshed every dayStart here.
Long-form, data-backed. Written by divers, edited for accuracy.
Constant-weight, frame by frame
Study a 125m world-record descent — line, equalisation, turns. The technique guide in motion.
Freediving for beginners
From your first breath-hold to a clean 10m. What actually matters in month one.
Best freediving fins, ranked
Carbon vs fiberglass, stiffness by weight class, and the 3 brands we keep buying.
Wetsuit buying guide
Open-cell thickness, lining, and why a 3mm isn’t always warmer than a 5mm.
Mask & snorkel guide
Low-volume fit, nose-pinch for equalising, and the skirt material that seals at 40m.
200+ diver logs
Real PBs, real spots, real gear. Submit yours and we’ll feature the best.
The kit that
gets you down.
Specs, not sponsors. Every item we write about is one a real diver actually trains in.
Watch elite gear under load
A 136m CWT world record — notice the monofin, suit and rope technique. This is what “tested by spec” looks like.
Carbon monofins
Stiffness curves, foot-pocket fit, and why length isn’t everything.
Open-cell wetsuits
Thickness tiers, lining, and the pre-dive soap trick that saves your skin.
Low-volume + depth gauges
Skirt seal at 40m, nose-pinch equalising, and the alarms we trust.
Where the blue is deepest.
Verified freediving spots with real depths, water temps, best seasons, and required levels. These aren’t brochures — they’re where records are set.
Dean’s Blue Hole
The world’s deepest known blue hole. Near-vertical walls drop to 202m. Home of the annual Vertical Blue competition where almost every CWT and FIM world record since 2008 has been set. William Trubridge’s 214m CNF (no fins) happened here.
Dahab — Blue Hole
The most famous freediving shore on Earth. Instant 30m+ depth from shore. The Arch (56m passage) is notorious — trained tech only. But the reef slope is perfect for 10–60m training year-round. Water temp rarely drops below 22°C.
Roatán
Second-largest barrier reef system in the world. Gentle beach entries on the south side, dramatic wall dives on the north. Visibility often exceeds 30m. Warm water, cheap living, growing freediving community. Best for 15–40m progression.
Amed, Bali
The gentlest entry point on this list. Sheltered volcanic-sand bays with gradual slopes perfect for first 10–20m. Liberty Wreck nearby for depth training later. Multiple AIDA/Molchanov schools. Budget-friendly: ~$30/day for two boat dives with guide.
Okinawa — Blue Cave
The Blue Cave (“Ao-Ikutsu”) at Cape Maeda is one of the most photogenic sites anywhere — sunlight enters an underwater archway illuminating the entire cave in ethereal blue. Summer (Jul–Sep) brings 26–28°C water and 20m+ visibility. Strong local coaching culture including Tomoka Fukuda’s school.
Kona Coast, Big Island
Volcanic shelves dropping straight into the Pacific abyss. Famous for manta night snorkels but serious for blue-water depth training — no bottom, just you and 1000m beneath. Not for beginners. Cooler water (24–26°C): 3mm–5mm suit required. Pelagic encounters: pilot whales, dolphins.
Descents worth studying.
Curated footage from divers and coaches we trust.
Oneness — Guillaume Néry
The 4-minute film that made a generation want to hold their breath. Shot by Julie Gautier, on one breath.
136m CWT world record
Alexey Molchanov’s descent — calm, controlled, and a masterclass in technique under pressure.
Never dive alone. Never skip the safety brief.
Shallow-water blackout accounts for the majority of freediving fatalities — and it happens on the way up, in shallow, safe-looking water. Read our blackout protocol before your next session.
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