boulder: place close to the ground to practice falling. when climbers aren't
climbing, they like to sharpen their skills by bouldering on large rocks
located in places frequented by impressionable tourists. because bouldering
is done without protection, the rule is never to climb higher than you'd
like to fall. that is why so many climbers stand around discussing boulder
problems instead of climbing them.
-- "An Alphabet for Mountaineers", Climbing 1982
