Stock Photo - The Green Bridge of Wales, St Govans, Pembrokeshire coast national park, Wales . The Green Bridge of Wales is a classic example of a natural arch and is an excellent illustration of the way that headlands are eroded in stages by the sea _ caves are enlarged to form an arch, eventually the arch collapses to form a stack, further erosion reduces the stack to a stump.

Stock Photo: The Green Bridge of Wales, St Govans, Pembrokeshire coast national park, Wales . The Green Bridge of Wales is a classic example of a natural arch and is an.

Searchable keywords

Choose multiple keywords