Francois-Xavier De Ruydts

Digging far below the surface, two gritty teams of hobbyist cavers are poised to discover the longest and deepest caves in Canada. Risking life and limb, their curiosity is matched only by their courage to chart the unknown.

Two adventurers seek out by air, raft, scuba diving and more to better understand Canada's diverse land, people and ecosystems.

Two adventurers seek out by air, raft, scuba diving and more to better understand Canada's diverse land, people and ecosystems.

Digging far below the surface, two gritty teams of hobbyist cavers are poised to discover the longest and deepest caves in Canada. Risking life and limb, their curiosity is matched only by their courage to chart the unknown.