it looks like a ledge used to stretch out from it...thats a good angle

That's some really nice geology The ledgy bits are actually shale and they don't weather as readily as the rocks in between, that's why you get that pattern. A lot of the south coast of England has rocks of Jurassic age. You're actually pretty close to Lyme Regis where Mary Anning first discovered marine reptiles in the early 19th century. But this isn't the time for a lecture =P