Instructor and technical diver Rannva Joermundsson, together with Maria Bollerup, will be gracing the Main Stage at the GO Diving Show in March to showcase the ground-breaking Expedition Buteng.
First of its kind in Indonesia, Expedition Buteng brought together a diverse team of international and Indonesian divers, cavers, scientists, media professionals and heritage researchers to study and preserve the unique and stunning cave systems and geological landscapes and formations of Muna Island.
Project leads Rannva and Maria will share the story of Expedition Buteng, detailing the journey as it unfolded both in and beneath the Indonesian jungle, shedding light on the region’s incredible aquifer, biodiversity and its potential for future conservation efforts.
Originally from the Faroe Islands and now based in Cornwall, Rannva Joermundsson is Head of Sales for Fourth Element.
A diver since 2008, she is passionate about encouraging young people, particularly women, to enter the world of technical and cave diving.
Rannva co-founded Nixie Expeditions with Maria Bollerup, and together they were the project leads on the successful Expedition Buteng in Southeast Sulawesi, Indonesia in October 2024.
Rannva’s other projects include serving as Expedition Divemaster on a private expedition to Antarctica, which involved submarine and helicopter operations. She also took part in the 2021 Xunaan-Ha Expedition in Mexico, supported by Rolex’s Perpetual Planet Initiative.
More recently, Rannva joined the Darwin200 project, completing a transatlantic crossing on a tall ship and developing a coral transect project in Brazil. Finally, she served as Expedition Divemaster organising diving logistics for 30 people on a private expedition to Cocos and Galapagos in January 2025.
Rannva is a public speaker, member of the Explorers Club and serves on the Explorers Club Watch Committee, as well as being a Flag Carrier for WINGS Women in Discovery.
As a rebreather cave diver and an explorer, Maria Bollerup has traversed the world as a professional diver since the age of 18.
Through a dedicated career in the diving industry, her passion for science has led to her participation in various scientific diving projects. These range from tagging hammerhead sharks using rebreathers, to conducting coral transects in the most-remote parts of the Pacific Ocean, for the Darwin 200 Project.
Her heart lies within cave exploration and a spark was lit during the Xunaan-Ha Expedition in Mexico, a cave expedition supported by Rolex’s Perpetual Planet Initiative, which worked to prove the Holbox fracture theory.
From this, Maria co-founded Nixie Expeditions with Rannva Joermundsson, an organization that merges diving exploration with scientific research. Their aquifer project Expedition Buteng took place in October 2024 in Sulawesi, Indonesia, focusing on cave exploration, research, and the preservation of unique and isolated cave systems.
Committed to inspiring future underwater ambassadors, Maria founded Blue Venture Diving, a B2B dive travel agency catering to young backpackers from Europe. She runs a dive-training programme through the organisation Thin Blue Line Denmark, supporting PTSD-diagnosed police officers with sanctuary and peace through diving and breathwork.
As an advocate for exploration-based diving, Maria is a public speaker, a Fourth Element ambassador, she’s a Flag Carrier for WINGS Women in Discovery, and a member of The Explorers Club.
The GO Diving Show
The GO Diving Show – the only consumer dive and travel show in the UK – returns to the NAEC Stoneleigh on 1-2 March 2025, just in time to kick off the new season, and promises a weekend full of interactive, educational, inspirational and fun content.
As well as the Main Stage – this time headlined by TV star, author and adventurer Steve Backshall, making a welcome return to the GO Diving Show after a few years away, along with NASA-trained NEEMO Aquanaut and Head of Scientific Research at DEEP Dawn Kernagis, fellow TV presenter, author and perennial favourite Monty Halls, Dr Timmy Gambin, who will be discussing Malta's rich maritime and wartime heritage, and the dynamic duo of explorers Rannva Joermundsson and Maria Bollerup, who will be talking about their recent Expedition Buteng in Indonesia – there are again dedicated stages for UK diving, technical diving, underwater photography and inspirational tales. Andy Torbet will be MCing the Main Stage once again, as well as giving a presentation on the challenges of shooting technical diving for TV shows.
Along with the stages, there are a host of interactive elements – the ever-popular Cave, the giant trydive pool, the immersive virtual reality tech-wreck dive, breath-hold workshops and lining-out drills, marine biology zone and, new for 2025, your chance to try your hand at wreck mapping with the Nautical Archaeology Society and their ‘shipwreck' – all scattered among an ever-increasing array of stands from tourist boards, manufacturers, training agencies, resorts, liveaboards, dive centres, retailers and much more.
This year also sees the NoTanx Zero2Hero competition taking centre-stage. This competition, aimed at newbie freedivers, will see an initial 12 candidates undergo training with Marcus Greatwood 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, courtest of Oonasdivers. Click here to register for your chance to compete.
Advance tickets now available!
Buy your day ticket now for £17.50 + booking fee and be ready for an educational, exciting and inspirational experience! Or with so many speakers over the two days, plus all the interactive displays and exhibitors to visit, why not make it a weekend, and snap up a two-day ticket for £25 + booking fee? Group ticket prices for 10+ people are also available if you are coming with your centre/club members. Book tickets on Go Diving Show website.
And as always, the ticket price includes complimentary parking. And under-16s go free of charge, so bring the kids along for a fabulous family day out!
