An outdoor adventure guide and fitness author for more than 25 years, John Colver is the creator of the award-winning Fit By Nature training system. His work has helped thousands of clients and groups build physical fitness, mental resilience, and lasting life change through structured training programs, immersive tours, and retreats across the United States, Europe, the United Kingdom, and Australia.

In December 2022, he launched Camino Fitness Training, now a community of more than 22,000 followers inspired by the Camino de Santiago pilgrimage. His previous books include Fit To Climb: The 16-Week Training Program for Mount Rainier (2018) and Fit By Nature (2011), both published by The Mountaineers Books.

Fit By Nature was named Seattle’s Best Outdoor Fitness Program in 2009, and John was recognised as a Top Personal Trainer in KOMO News’ Best of Western Washington awards in 2011. He has guided for leading mountaineering organisations including the American Alpine Institute, Alpine Ascents International, Rainier Mountaineering Inc., and International Mountain Guides, in addition to private guiding for executive teams across the healthcare, technology, financial services, and nonprofit sectors in North America and the United Kingdom.

John designs custom routes and destinations selected for their beauty and transformative impact. Each experience is meticulously planned, allowing guests space to reflect while engaging deeply with local culture and expert guides. His journeys follow the “road less travelled” and are often described as a walking think tank for life—bringing together explorers, athletes, authors, artists, scientists, and business leaders in open, meaningful dialogue.

Raised between London and Edinburgh, John’s passion for the outdoors began in urban parks before he discovered cycling at age thirteen. Within three years he became a national champion and member of the Scottish national team, competing across Europe. His cycling career later included work with Specialized Bicycle Components in California, alongside mountain bike racing, triathlon, and a 2011 coast-to-coast ride across the United States from Seattle to Washington, D.C.

His climbing and expedition foundation was formed in the British Army’s Parachute Regiment and has continued across major ranges and wilderness in North America, Europe, and Africa, both as a commercial guide and dedicated mountaineer.

Colver has presented on outdoor fitness and nature advocacy for leading organisations worldwide. He regularly guides Camino de Santiago tours in France, Spain, and Portugal, leads wellness retreats in the Scottish Highlands, and delivers scheduled and private courses internationally.

John Colver Tours Ltd, is based in Perthshire, Scotland.

John is currently completing Starlight and Stone, a decade-long writing project exploring the global environmental movement since the early nineteenth century - and the profound influence of nature on human life.