The Cliffs along the beach front in this area are about 200 Million Years Old and originate from the Jurassic Period, I guess hence the name "Jurassic Coast".
On Monumoth Beach there is a large Ammonite grave yard with ten of thasond Ammonites. In the other direction toward Charmouth you can find pyritied Ammonites.
Over all, we really wanted to find a Ichthyosaur, but we only found 2 vertebrae, I guess better luck next time.
As the Jurassic Coast is a World Heritage Area, NO hamering of the cliffs is permitted. Because the cliffs are unstable visitors are advisted to keep at least 8 metres away from the cliffs.