St Helena, Ascension and Tristan da Cunha are British Overseas Territories. There is no formal British diplomatic representation on any of the islands and the local authorities deal with all requests for consular assistance. See Consular Assistance
You must take out comprehensive travel and medical insurance before travelling.
There is a low threat from terrorism. See Terrorism
Travel to Ascension is with the RAF flying out of RAF Brize Norton, or by sea on the RMS St Helena. Travel to St Helena and Tristan da Cunha is by sea only. See Getting to St Helena, Ascension and Tristan da Cunha
You must meet certain conditions before the Tristan da Cunha island Council will authorise a visit. Visitors to Ascension must be in possession of a valid entry permit before travelling. See Entry Requirements
A good standard of medical care is available on Ascension Island, but it is limited and is not free to visitors. An adequate standard of medical care is available on St Helena but costs can be high and medical evacuations depend on the schedule of the RMS St Helena. Medical treatment in Tristan da Cunha is not free and major treatment can be very expensive, especially if repatriation to Cape Town is needed. See Health