Blue Lake holds a mystery deep beneath its surface. And Martin Robson wants to solve it. The British diver descends into the murky depths. But hundreds of feet underwater, an invisible and excruciating force suddenly overwhelms him. Semi-paralysed and sinking, Martin is only at the start of an extraordinary ordeal - one that will ultimately last not for hours, but days…

A Noiser podcast production. Hosted by John Hopkins.

Written by Luke Lonergan | Produced by Ed Baranski | Assistant Producer: Luke Lonergan | Script edit by Joe Viner | Exec produced by Joel Duddell | Sound supervisor: Tom Pink | Sound design & audio editing by Jacob Booth, Liam Cameron, Matt Peaty | Assembly editing by Rob Plummer | Compositions by Oliver Baines, Dorry Macaulay, Tom Pink | Mix & mastering: Ralph Tittley.

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