Loads of us have GoPros these days to capture incredible moments while we're out and about adventuring - but sometimes, they record footage of things we'd rather not relive.

The waterproof and shockproof cameras are extremely popular with explorers, sports lovers and divers, including those who fatefully visited Norway's Plura Cave - the deepest cave in Northern Europe.

Out of the five Finnish men who descended to the depths on 6 February, 2014, only three of them made it back up - and a GoPro chillingly filmed the moment things went fatally wrong.