How to Start Freediving as a Beginner (Safely)

Step 1: Take a certified beginner course (do not self-teach)

The single most important thing about starting freediving is how you start: with a certified instructor, never alone off a YouTube video. A course teaches you technique, but more importantly it teaches safety, buddying and rescue, the things that keep the sport safe. The main beginner certifications are broadly equivalent and internationally recognised:

Figures per each agency's own course pages (PADI, AIDA, Molchanovs); confirm current targets and prerequisites with your school. Any of them is a fine first step, so choose the school and instructor on safety and reviews rather than the logo, just as with scuba certification.

Step 2: Learn relaxation and breathing (and never hyperventilate)

Freediving is a sport of calm, not power. You will learn slow diaphragmatic breathing and deep relaxation, which lower your heart rate and oxygen use and let you hold your breath far longer than you would expect. The critical rule you will be taught: never hyperventilate (fast, forced breathing) before a dive. It lowers your carbon dioxide and removes the urge to breathe that normally warns you to surface, which is a direct path to blackout. Controlled breathing up, one final breath, and a relaxed descent is the pattern.

Step 3: Master equalization

For most beginners, the limit on depth is not the breath-hold, it is the ears. You will learn to equalize early and often, usually the Frenzel technique rather than the Valsalva many scuba divers use, so you can descend comfortably. Equalization is a skill that takes practice, so be patient: a session where you nail your equalization at 12 metres is a bigger win than forcing depth you cannot equalize.

Step 4: Always dive with a trained buddy

This rule is not negotiable: never freedive alone. Freedivers use the one-up, one-down system, one person dives while the other watches from the surface, ready to meet them on the way up and perform a rescue if needed. A blackout is silent and gives no dramatic warning (a large release of bubbles from the mouth is a recognised sign), so a trained, attentive buddy is what turns a blackout from a tragedy into a non-event. This is exactly the skill a course drills, and the reason self-teaching is so dangerous (DAN).

Step 5: Progress conservatively (and understand shallow water blackout)

Depth and breath-hold build over many sessions, not one. The reason for the caution is shallow water blackout (also called hypoxic blackout): as you ascend, falling pressure can drop your blood oxygen sharply, causing a sudden, silent loss of consciousness, often near the surface where you feel almost home. Prevention is the whole point of training: never hyperventilate, never push to your absolute limit, always have a buddy, and build slowly. Two more rules: never freedive after scuba diving the same day (it raises decompression-sickness risk), and stop the moment you feel unwell.

What gear do you need to start?

You need less than you think, and beginners should rent or use the school's gear first. A typical freediving kit is a low-volume mask (or nose clip for advanced), long freediving fins, a wetsuit suited to the water, a weight belt and a dive watch or freediving computer. It packs small for travel, like the rest of a travel watersports kit, but there is no rush to buy: learn first, then invest once you know you love it.

Freediving vs scuba: which should you learn?

They are different joys. Scuba lets you stay down for an hour exploring reefs and wrecks; freediving is quieter, gear-light and meditative, a single breath and the blue. Many nomad divers do both. If you are drawn to the calm and simplicity, freediving is wonderful; if you want long bottom times and to build toward tech, start with scuba certification. Neither is "better", they scratch different itches.