The Tetrapod imprints are thought to date from Devonian times – somewhere between 350 and 370 million years ago. This site is of international significance as it represents the transition of life from water to land – a momentous turning point in evolution and provides the oldest reliably dated evidence of four legged vertebrates (amphibians) moving over land. The Valentia Island Tetrapod footprints are the most extensive of the four Devonian trackways in the world. (The others are in Tarbet Ness, Scotland; Genoa River, NSW Australia; Glen Isla, Victoria Australia). Access to the track way is by a pathway down to the rocks.