Marcus Webb - Freediving Researcher and Editor

Marcus Webb researches and edits the training and gear guides on Freediving Guides. The guidance here is research based rather than a record of personal dives: it draws on the published standards and course materials of AIDA, SSI, PADI and Molchanovs, on freediving and diving-medicine literature, and on manufacturer specifications. Gear recommendations compare published specs, design intent and the consensus reported by instructors and divers, and are not first-hand product tests. Safety guidance follows the training agencies rather than personal opinion, and no brand pays for coverage or placement.

What this site is based on

Training-agency standards and course materials from AIDA, SSI, PADI and Molchanovs
Peer-reviewed freediving physiology and diving-medicine literature
Divers Alert Network (DAN) safety and incident guidance
Manufacturer specifications and published product documentation

Areas of expertise

Freediving fins and blades
Low-volume mask selection
Wetsuit fit and thickness
Freedive computers and depth gauges
Weight system setup
Breath-hold training and CO2/O2 tables
Equalization technique
Spearfishing freediving crossover

How the guides are researched

Every training and safety article on this site is written against the published standards of the recognised agencies, AIDA, SSI, PADI and Molchanovs, alongside freediving physiology and diving-medicine sources including Divers Alert Network. Where the evidence is genuinely uncertain, such as the common claim that dairy increases mucus before a dive, the article says so rather than presenting it as settled.

Editorial approach

Gear guides on this site are research based and are not first-hand product tests. Recommendations compare published manufacturer specifications, design intent, materials and the consensus reported by instructors and divers, and the reasoning behind each pick is stated so you can judge it yourself. Some links earn a commission, which never determines what gets recommended, and known drawbacks are written plainly.