bay cliff coastline Cornish cornwall cove England english flow Great Britain hillside incoming inlet natural nature ocean racing rocks sea shore surf tide water waves beat boulder coast cottage crane crash fierce landscape pound rage rock storm stormy surge wave beach cliffs sand sandy sheltered spring wild cloud colorado cumulus debris hike hiker hiking mountain mountains path range rocky rugged sky track trail Trek usa view walk broken Catalan catalonia Catalunya conifers costa brava cracked damaged face fissured fractured green high pines Spain spanish tall trees unstable worn algae arch chalk hole kent low peephole seaweed stone white blue dwindle edge icy July margin melt norway norwegian plants plateau retreat snow thick vegetation