Most of the world’s great unsolved mysteries are covered by water! On that tantalising note, Monty Halls explores four stories that have baffled the diving world. Monty travels to the most mysterious underwater locations on earth, meeting sceptics and believers, diving at the cutting edge of technology, to tease the truth out of ghost ships, sunken worlds, ancient legends and lost treasure.

Episode Length: 00:45:00

Year: 2013

Episodes: 4

This documentary is available to watch for FREE on Planet Knowledge, a free to watch video on demand channel on Freeview HD (Channel 265), Youview, Samsung connected TV’s, selected smart TV’s, tablets and smartphones using Android or iOS.