System for traversing a gap between two high points by means of a tensioned rope between the two points.
A person slides across a rope over a gorge or stream.
An undercurrent running in a different direction to that of the water above the backwash of wate , as in receding breaker.
Wooden stick on pale used to assist balance in moving water.
Non-competitive form of orienteering using map and compass to navigate around forest areas.
Tight-fitting suit of neoprene rubber,providing high insulation and designed to trap a layer of body-warmed water between skin and suit.