The second wholly natural World Heritage Site to be designated in the UK and Stretching 115km (96mi), from Orcombe Point near Exmouth to OldHarry Rocks at Handfast Point on purbeck island. The length of the Site can be walked on the South West Coast path.
Documenting over 180 million years of geological history, showcased in the cliffs that characterize the Coast, which formed during the Triassic, Jurassic and Cretaceous periods of the mesozoic era.
It was these cliffs and coves (along with it's position on the English Channel), that made it one of the staging grounds for the D-day invasions of Normandy. And some places are still used as military training grounds to this day. While others were closed and opened to the public, such as the the Royal Navy base at Portland Harbour. Which later became a popular location for wind surfing, wreck diving and sailing. So much so in fact that the Weymouth and Portland Sailing Academy, which hosted the the sailing events in the 2012 Olympic Games, can be found there.