Go Diving Show 2025 Tech Stage Speaker: Marcus Greatwood
Freediving instructor Marcus Greatwood returns to the GO Diving Show in March along with the NoTanx team, and will be doing a presentation about wreck hunting while freediving, as well as running breath-hold workshops throughout the weekend, and presiding over the Zero2Hero Freediving Challenge.
Based in the UK, Marcus has been teaching freediving, guiding people to extraordinary locations, and capturing their beauty through photography since 1999. His mission has always been to share the wonders of the oceans with as many people as possible.
After years of competitive freediving – where he set three national records and represented the UK team for four years – Marcus transitioned to coaching elite freedivers. Under his guidance, athletes achieved five world records and more than 24 national records.
Since 2011, Marcus has focused on exploring remote and challenging environments, specializing in Extreme Location Freediving from 2016 onward. Documenting these incredible locations through photography became an integral part of his adventures.
These expeditions brought new challenges, driving the development of innovative technologies and concepts, always with safety as the top priority.
Breath-hold wreck exploration
Exploring wrecks on a single breath has been a prominent part of his team’s focus, with enabling people to be on the wreck safely for as long as possible being the target. This is the topic for his presentation on the Tech Stage at the show.
Zero2Hero Freediving Challenge
The NoTanx Zero2Hero competition, aimed at newbie freedivers, will see an initial 12 candidates undergo training with Marcus and the NoTanx team in London in late-February. Then five selected finalists will compete at the GO Diving Show over the March weekend, including static apnea sessions in the pool, to find the overall winner, who will get a week-long trip to Marsa Shagra Eco-Village, courtesy of Oonasdivers. Click here to register for your chance to compete.
Go Diving Show 2025 takes place at the NAEC Stoneleigh Park, Coventry, on the 1st -2nd March.
