Tom Randall and Pete Whittaker climbing The Great Rift on the M5 motorway bridge above River Exe in the UK. Over four days and nights, bivouacking in a free hanging portaledge amidst the roaring din of traffic, the pair shoved their hands and feet thousands of times into a crack that vibrated and flexed as delivery trucks rumbled just a few feet overhead.

© Reel Rock / Ray Wood