In 1979, Bo Lenander was hiking in the Bjurälven natural reserve. He was enjoying the northern Swedish landscape with its lush green beauty of the summer, making his way along the river running through the limestone valley.Bosse arrived at the river source. Being a curious individual, he was soon in the water, freediving to the bottom of the pool...

I don't consider cave diving an adrenaline sport. In fact, it's the opposite. Going to an extremely deep point in the ocean, just to get a number for a depth record, that is not my motivation. I would happily do, and have done a lot of very deep dives, for a reason such as a historic shipwreck that nobody's...

Over 90 percent of caves are formed in a solutional rock, usually limestone. To explore you need to find areas with limestone beds. There are numerous areas like this worldwide. They're all unique because of how the caves are formed...

Phil Short has been a dive industry professional for over 20 years. He has trained hundreds of divers and participated in demanding cave rescue operations. He has explored some of the world’s deepest dry caves and spent thousands of ...