An elemental challenge for climbers and storm-watchers

Bosherston, Pembrokeshire To stand on the cliff as green combers thud into the walls beneath, roar into the cave and recoil in white chaos is to become aware of even rock's fragility

The bird ledges on Mowing Word, a cock's spur of a limestone point on the south Pembrokeshire coast, are empty now. The guillemots and razorbills that jostle, cackle and croon here through the spring months, their single eggs perilously free from nests' constraints, are far out to sea, searching for food.

The cliff on wild days is storm-watchers' domain. To stand on top as green combers thud into the walls beneath, roar into the cave and recoil in white chaos is to become aware of even rock's fragility. Sometimes the whole narrow headland shakes beneath your feet, and white spume that looks so light lashes the skin.