“We’ve even had the coordinates of the wedding location engraved into our rings,” Mr Carpenter said.

The ceremony will be attended by the 30 crew of the RRS Sir David Attenborough, followed by a reception with around 100 staff from the research station.

Food will be prepared by the station’s chef and the facility’s resident band will provide the music.

Mr Bourne said: “We’re both very proud to be the first same-sex marriage to happen in British Antarctic Territory.

“BAS is such a welcoming and accepting employer, and we feel very lucky to be able to live and work in such an incredible community and place together.”

The wedding will be registered with the British Antarctic Territory Government, which is based in the Foreign, Commonwealth and Development Office, and will be valid in the UK.

The couple will hold a second celebration for family and friends later in the year in the warmer climes of Spain.