You'll learn techniques to abseil down the sides of gorges, cross waterfalls and swim in mountain-side pools.
British Dictionary definitions for abseil
(mountaineering) to descend a steep slope or vertical drop by a rope secured from above and coiled around one's body or through karabiners attached to one's body in order to control the speed of descent
to descend by rope from a helicopter
an instance or the technique of abseiling
Also called rappel
C20: from German abseilen to descend by a rope, from ab- down + Seil rope