About BlueHole
BlueHole is a freediving community built on one rule: real data over hype. We publish depth guides, gear teardowns, and diver logbooks — every number checked against a manufacturer spec sheet or a certification body, never a feeling.
Why we exist
Freediving grew past 7 million active participants in 2025, but most beginner advice online is noisy and sometimes unsafe. We built BlueHole to be the calm, sourced alternative — a place where “83m” means a real person’s personal best, not a stock photo.
Our three promises
01 · Real specs. Every figure we cite is measured or quoted from the source.
02 · Safety first. Shallow-water blackout is the real risk. Every depth guide links our safety protocol.
03 · No paid ranks. Affiliate links are clearly marked and never change what we recommend.
Who writes it
Guides are written by certified divers (AIDA / PADI / SSI) and edited for accuracy. Gear we link is gear a real diver trains in.