Same-sex marriage in Guernsey June 2018 in Platte Saline. Sark is a constituent Channel Island which forms part of the Bailiwick of Guernsey. It has legislative autonomy and legislation passed by the States of Guernsey do not apply to Sark without approval of the Legislature of Sark, known as the Chief Pleas, as a result same-sex marriages are not performed on Sark. Same-sex marriage in Guernsey The legal status of same-sex unions differs within the Bailiwick of Guernsey, a Crown dependency of the United Kingdom. Same-sex marriage became legal in the jurisdiction of Guernsey on 2 May 2017, and in Alderney on 14 June
Alderney Alderney Alderney (; ; Auregnais: "Aoeur'gny") is the northernmost of the inhabited Channel Islands. It is part of the Bailiwick of Guernsey, a British Crown dependency. It is long and wide. The area is , making it the third-largest island of the Channel Islands, and the second largest in the Bailiwick. It is around from the west of La Hague on the Cotentin Peninsula, Normandy, in France, from the north-east of Guernsey and from the south coast of Great Britain. It is the closest of the Channel Islands to the United Kingdom. It is separated from Cap de la Hague