The endurance boulder problem links three Font 8A+ problems together and is part of the very famous boulder problem The Wheel of Life (Font 8C+).
If James links the Font 7C problem of X-Treme Cool to the start of Sleepy Rave, he will get the ultra-coveted tick of The Wheel of Life.
These super endurance roof problems are almost a style of climbing in their own right and may seem a strange concept to those unfamiliar with this style. It is a type of climbing that we do have in the UK, with stamina link-ups in Parisella's Cave in North Wales being of a similar length and steepness.
VIDEO: James Kassay - Sleepy Rave (Font 8C):
RELATED VIDEO: Pete Robins on Silk Cut (Font 8B/+) at Parisella's Cave, Wales:
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