4K HD - This was a extremely dangerous dive these types of supraglacial lakes drain very suddenly in just a few minutes. As the melwater in these pools seep deeper and deeper towards the base... The glacier eventually cracks, causing roaring quakes eventually the whole glacier, brand new crevices are born ripping open everywhere as the entire lake drains to the base of the glacier within minutes. If you fell into one of these while it drains or starts to suddenly drain you would be shredded to d