South Georgia & the South Sandwich Islands is a British Overseas Territory. There is no formal British diplomatic representation. The Office of the Commissioner of South Georgia and the South Sandwich Islands based in Stanley, Falkland Islands deals with all requests for consular assistance.
You must apply in advance of your visit for permission to land on the Islands. Your travel organiser will normally do this on your behalf. See Entry Requirements
Consider travelling with a company affiliated to the International Association of Antarctica Tour Operators, whose members sign up to a code of practice on operational and environmental safety and whose vessels often have access to more of the Islands.
There are risks posed by the harsh climatic conditions in this isolated sub-Antarctic Territory. See Local travel
Although there’s no recent history of terrorism in South Georgia & the South Sandwich Islands, attacks can’t be ruled out. See Terrorism
There are no medical or search and rescue facilities. You should take out comprehensive travel and medical insurance before you travel.