Peacehaven is famous for its giant ammonites Parapuzosia that appear most frequently in situ on the foreshore north-west of the steps. Despite measuring over 6 feet across in some instances, the ammonites are not immediately apparent to passers-by. The best time to view them is at low-tide when the sea is sufficiently low and the foreshore is well exposed. From a distance many of the ammonites can be spotted as pedestals raised above the foreshore. The pedestal shape is caused by the softer surrounding chalk being eroded by the scouring action of the sea, leaving the harder more resistant ammonite protruding above the surface. For further information please visit the following site: