rEvo Rebreather event held in wintry conditions at Stoney Cove


Over the weekend of the 17th & 18th of March, the teams from rEvo Rebreathers and Mares gathered at Stoney Cove to show off their latest equipment, offering rEvo try dives and loaning out Mares dive and XR equipment to the divers who adventured out on what was a particularly wintry weekend. Even with a weather warning for extreme cold and heavy snow, divers turned up from around the UK.

Saturday started out beautifully sunny as the first group, who had signed up to try out the rebreather systems, headed into the classroom at Stoney Cove to hear about how the system works and the benefits over other rebreather models. Then it was time to gear up. The sky turned white and soon snow was falling, but just as quickly it shifted back to bright sunshine; clearly, the weather was going to be a feature of the day!

In the water, the temperature was 4 degrees and the visibility was somewhat less than ideal. This, however, did not seem to put-off the divers from experiencing the rEvo rebreather on a try dive. Some were experienced rebreather divers, others having a go for the first time, but once they had signed up, they were treated to 1:1 guidance from the professional instructor team that had traveled from Italy, Belgium and all over the UK.

The rEvo is a revolutionary rebreather system and we were amazed at just how compact and light the system is. Features that make it stand out from the crowd include:

  • Dual scrubber: the most efficient scrubber system on the market, dual redundant design, safer in use while using less sorb.
  • Lightweight / travel friendly: travel weight of around 15 kg, and a dive ready weight of 21kg makes the rEvo micro one of the most travel friendly units on the market.
  • Maintenance friendly: easy to set-up and maintain. Complete assembly and dive preparation including checklist in less than 5 min. The design prevents user assembly errors.
  • “True” redundant electronics: the different electronic system that monitor the ppO2 in the rebreather are redundant up to sensor level and therefore produces an inherently safe design.

In the evening Mares and rEvo hosted a dinner at Stoney Cove for journalists, instructors and dive shop owners to hear a presentation from Paul of rEvo about how the system works. Alas, the snow really picked up, and the group grew nervous at the thought of the drive out of Stoney involving driving up the winding hill. Watching the blizzard getting worse from the Nemo restaurant window, the decision was taken to head back to the hotel while we still could; a wise move.

Sunday saw the air temperature drop to a chilly -2 degrees, and as we pulled into the car park at Stoney Cove, a layer of snow had covered the cliff edges and walls around the quarry. Surely only the brave would be turning up on a day like this, but turn up they did, and the morning rEvo try dive session went ahead with seven of us braving the chilly water. For those with little experience in rebreather diving, the try dives were conducted in shallow water, staying at 5m, and touring around the Nautilus sculpture, spending around 30 minutes in the water (which was plenty given the temperatures!)

It was a very informative weekend for anyone interested in rebreather diving and it provided a great chance to try out the rEvo rebreather with 1:1 instruction. Mares, somewhat unsurprisingly, saw plenty of divers asking to try out their heated vests. I was lucky enough to be one of the divers trying these out and the difference it made to diving these wintry conditions was incredible. We did three dives over the weekend and never once got cold; no ice-cream headache and our hands were fine throughout the dives too.

For more information about rEvo Rebreathers visit their website:

For more information about Mares visit their website:

Nick and Caroline Robertson-Brown

Nick and Caroline Robertson-Brown

Nick and Caroline Robertson-Brown are a husband and wife team of underwater photographers. Both have degrees in environmental biology from Manchester University, with Caroline also having a masters in animal behaviour. Nick is a fellow of the Royal Photographic Society in underwater wildlife photography and he also has a masters in teaching. They are passionate about marine conservation and hope that their images can inspire people to look after the world's seas and oceans. Their Manchester-based company, Frogfish Photography, offers a wide range of services and advice. They offer tuition with their own tailor made course - the Complete Underwater Photography Award. The modules of the course have been written to complement the corresponding chapters in Nick's own book: Underwater Photography Art and Techniques. They also offer equipment sales and underwater photography trips in the UK and abroad. For more information visit

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