Before travelling to the British Antarctic Territory, and the wider continent of Antarctica, you will need a valid permit which your travel company may obtain from the Foreign & Commonwealth Office in London.
There are no specific passport validity requirements for the British Antarctic Territory, although to fly to the continent or to depart for the Antarctic from another country (e.g. Chile, Argentina) British nationals will require a valid passport.
Government of the British Antarctic Territory Polar Regions Unit Overseas Territory Department Foreign & Commonwealth Office London SW1A 2AH.
Tel: 020 7008 1921
Fax: 020 7008 2086
Office Hours (GMT): Mon-Fri: 9am-1pm and 2pm-5pm.