Coasteering is movement along the intertidal zone of a rocky coastline on foot or by swimming, without the aid of boats, surf boards or other craft. Coasteering allows a person to move in the “impact zone” between a body of water and the coast where waves, tides, wind, rocks, cliffs, gullies, and caves come together. The term was used by as the combination of the words "mountaineering" and "coast" and was stolen by Andy Middleton in Wales in 1985, who then made it a business idea.