Quote:
myself and a colleague from work are intending to climb one mile at the Ratho Adventure Centre. The climb we intend to use is about 100ft (rated hard/severe on the UK grading system - that's about a 6A) so that'll be about 55 climbs.

In what period of time? 55 pitches of 6a/5.11b is quite a haul! You're a hardman.
_________________________
Mark Cushman