please find here a little video (link to youtube video) made with my gopro 5 and edited in quik on iphone.
It was shot in Douix de chatillon cave in France this sunday. Visibility was pretty good
The goal, in addition to have fun was to test my new gear with gopro 5, and the quik edit app in iphone. Over 76min of rush edited in less than an hour!!
Cheers & enjoy the video