Middleton-on-Sea is a typical West Sussex beach. At high tide you have pebbles but as the tide goes out you get compact sand and wooden groynes. This beach has some interesting beach protection that provide rock islands when the tide is out. More information at: www.coastradar.com/beach-guide/Europe/UK/West%20Sussex/Bognor%20Regis/Middleton-on-Sea/1086