Life in British Columbia

Champions of North Vancouver Island Caving

The North Island holds many natural wonders that draws Christine and I time and again to explore amongst the myriads of lakes, rivers and forested areas of the Nimpkish Valley. We are never disappointed; outstanding wildlife, breathtaking scenery, the invigorating aroma of clean fresh air… many treasures are waiting to be found hidden amongst lichen, mosses, and shards of memory to tantalize one’s imagination, in an amazing rainforest ecosystem.

Perhaps one of the most gracious and rewarding encounters are people you inadvertently meet out there. That certainly was the case one spring Nimpkish Valley morning, when we happened upon two wonderful modest souls working the land in their base camp called “Northern Vancouver Island Cave Karst Explorations”. Ardent spelunkers (or cavers as they prefer to be called), they both had exciting stories of magnificent underground tunnels, huge chambers, rope rappelling, and magnificent stalactites and stalagmites. They recounted memories of giant clusters of spiders, underground rivers, and sightless albino fish that change colour when brought above ground…. Such amazing stories about our North Island kept us spellbound.

We listened intently as Michael and Linda shared the Valley’s history, layered by ages and hidden by a rainforests relentless growth. Wonderful stories of indigenous glory, echoes of Japanese influences they found, the meaning behind Nimp’ka carvings, ancient birthing stones, and legends of forest shadow people. Their storytelling brought the Valley alive, weaving together chapters of cultural traditions and natural wonders with reverence. Each tale revealed not only the North Island’s unique heritage but also the deep bonds between people and place, reflecting the Henwoods’ own commitment honouring these connections. Their passion for outdoor adventure, both above and below ground, was infectious. We marvelled at their explorations of the valley’s hidden depths and land above.

Meeting Michael and Linda that spring morning transformed our understanding and appreciation of the Nimpkish Valley, deepening (excuse the pun) our own connection to its beauty, inspiring stewardship and respect we carry today for its rich ecological makeup. Though we have never explored beneath the ground ourselves the chance encounter with these two cavers blossomed into a friendship, rooted in shared wonder and a mutual dedication to protecting the valley’s extraordinary legacy.

 

When not exploring caves, Michael revealed another facet of his creativity. He is an artist… carving spiritual faces into living cedar trees. His unique Nimp’ka artistry can be found in many secluded spots across landscapes throughout British Columbia; each carving reflective of the human dimension and legacy of the land. These works continuously and quietly evolve over years as the tree host ages.. the tree becoming an artistic partner framing the carving with a roll of living bark, connecting visitors and locals alike to the forests’ personal artistic spirit, adding another layer to Michael’s lasting impact above and below the ground.

Later I was to learn the names Michael and Linda Henwood are intricately woven not only into Island history, but also in the fabric of wild caving and karst conservation internationally. The combined efforts of Michael and other North Island cavers are the catalyst responsible for international attention transforming Port McNeill and the Nimpkish Valley’s subterranean world into thriving laboratory for subterranean exploration, scientific study, and environmental stewardship of caves and karsts. Using their base camp as focal point for organizational leadership, hands-on exploration, and passionate advocacy, the Henwoods and many cavers from across the spectrum have unquestionably left an indelible mark on British Columbia’s caving community.

Michael’s fascination with geology and rainforest began as a logger, working alongside towering firs and winding rivers of North Vancouver Island. Drawn to the mysteries of caves beneath the lands surface, his early explorations evolved into a lifelong commitment. His wife, Linda Henwood, joined him not only as a partner in life but also in adventure. Her prowess as a caver and like dedication to conservation made their partnership a cornerstone of local speleology. Together along with the North Island caving team, the dedicated spelunkers have mapped, studied, and protected the region’s most remarkable caves, from Devil’s Bath to Thanksgiving Cave, and the intricate Artlish Cave network.

The Henwood’s vision extends beyond personal discovery. It was in 1984, they founded Northern Vancouver Island Cave and Karst Explorations, setting up a base camp on the shores of one of the many pristine Lakes in the Nimpkish Valley. This camp quickly became a hub for collaboration, drawing cavers, geologists, and environmentalists from across Canada and beyond, representing over fifty countries! and remarkably including Walt Disney productions. The Northern Vancouver Island Cave Karst Exploration organization championed precision cave mapping, scientific research, and conservation initiatives; and in 1995 joined the BC Speleological Federation (BCSF), cementing its role as a leader in provincial caving and karst management.

Among Michael’s most significant achievements is his extensive work in the Artlish River Caves system. As an experienced commercial guide, he led expeditions deep into these limestone labyrinths, sharing their wonders with researchers and adventurers alike. He and his team created detailed mapping and documentation of the Artlish caves, setting new standards for accuracy and safety; while his commitment to sustainable guiding practices helped protect sensitive cave environments. Michael is quick to acknowledge that these accomplishments would not have been possible without the dedication and expertise of family and fellow cavers who volunteered their time and knowledge. He credits the collaborative spirit and hard work of his peers for pushing the boundaries of exploration and ensuring safety within the cave system. Their shared passion and teamwork have been instrumental in advancing both the scientific study and conservation of many North Island Caves.

Michael and Linda’s impact on the North Island stretch far beyond a single cave system. Together, they have documented and mapped many hundreds of caves on Vancouver Island, including the renowned Fulton Resurgence Cave. Their surveys have contributed invaluable data for scientists studying hydrology, geology, and biodiversity. The Henwoods’ technical expertise in cave mapping has enabled precise conservation planning and increased public awareness of Vancouver Island’s unique karst features

Recognizing the importance of balancing adventure with preservation, Michael and his family have played a pivotal role in bridging recreational caving with commercial tourism. He became a founding member of the British Columbia Cave Guiding Association, to foster along with his team responsible commercial exploration, promoting best practices for cave safety; inspiring and educating local residents and visitors about the fragility of karst systems. By integrating commercial guiding into wider conservation strategies, Michael and Linda were instrumental to the development of sustainable tourism caving models that prioritize environmental stewardship.

During conversations it became clear mentorship and education are at the heart of Michael and Linda’s legacy. Through many workshops, mentoring local school groups, guided tours, and hands-on training, they and the North Island team have shared their expertise in cave safety, and environmental awareness with enthusiasts and newcomers worldwide. Their initiatives have nurtured a culture of stewardship, inspiring the next generation to explore responsibly to protect fragile cave ecosystems. The Henwoods’ base camp outreach activities, including clean-up operations and restoration projects, have further strengthened the region’s commitment to conservation.

It is astounding to realize North Vancouver Island contains not only one of the highest concentrations of wild caves in Canada, but also the longest and deepest, positioning the region as a true magnet for scientists and explorers. The Henwoods’ steadfast dedication to mapping, research, and advocacy of these hidden wonders has significantly elevated the area’s profile, attracting international media coverage, engaging video presentations, and a wealth of magazine articles. Their commitment has firmly established the North Island as a premier destination for wild caving and karst studies, ensuring that these subterranean realms are recognized and cherished for their ecological, geological, and cultural significance by generations to come.

Thanks to the tireless work of the small close knit North Island caving community, professional associations, cavers groups, and Michael and Linda Henwood, the North Vancouver Island stands as a beacon for caving enthusiasts, scientists, and conservationists. Their pioneering spirit, organizational leadership, and devotion to education the Henwood’s and team of North Island cavers have transformed the area into a leading centre for exploration and research. As advocates for karst management and environmental protection, the Henwoods’ legacy will continue to guide and inspire future generations, ensuring that Vancouver Island’s subterranean treasures remain protected and celebrated for years to come.

Chris and I were indeed fortunate to happen upon two unique adventurous people in the Nimpkish Valley, one wonderful spring morning. It is a valley of hidden treasures where the ordinary becomes the extraordinary, and beauty is enveloped by passion, commitment, and ever-present wonder. The generosity of the Henwood’s sharing their knowledge of caving and view of North Island natural history opened doors to a world of fascinating above and below ground beauty, filled with ancient and remarkable stories of nature and first peoples, who made their home here long ago. Guided by their enthusiasm, we reaffirmed discovery of the delicate balance between exploration and preservation, respect and admiration, and the importance of protecting the valley’s fragile natural environment.

Safe Travels

Gord

Photos © 2026 Christine Patterson & Northern Vancouver Island Cave Karst Explorations