1. The waters around the islands include the following: The Swinge (between Alderney and Burhou) The Little Swinge (between Burhou and Les Nannels) La Déroute (between Jersey and Sark, and Jersey and the Cotentin) Le Raz Blanchard, or Race of Alderney (between Alderney and the Cotentin) The Great Russel (between Sark, Jéthou and Herm) The Little Russel (between Guernsey, Herm and Jéthou) Souachehouais (between Le Rigdon and L'Étacq, Jersey) Le Gouliot (between Sark and Brecqhou) La Percée (between Herm and Jéthou) The highest point in the islands is Les Platons in Jersey at 143 metres (469 ft) above sea level.