Experienced cave diver details what it's like to discover new cave lengths and set the record for the longest dive into an underwater cave without resurfacing.

There are many intact and diveable shipwrecks scattered throughout Canada's Great Lakes.

Shipwrecks, icebergs, whales and the Newfoundland Bell Island Mine await scuba divers looking to explore in Eastern Canada.

Encounter charismatic megafauna and colorful marine invertebrates underwater in Canada's Arctic.

On South Africa's Wild Coast, divers travel near and far for a chance to take part in the world's largest sardine run.

All Star Liveaboards

Renowned cave diver and underwater explorer Jill Heinerth shares how she stays alive in the trickiest of cave diving situations, from embracing fear to thinking small.