View out over Chesil Beach from Portland. The shingle beach is 29 kilometres (18 mi) long, 200 metres (660 ft) wide and 15 metres (50 ft) high © iStockPhoto.com Posted by Dorset Guide on Thu, 03/19/2009 - 21:12 × Related images Chesil Beach Chesil Beach Panorama The Chesil Bank Satellite Image of Chesil Bank and Portland