Saint Helena, Ascension and Tristan da Cunha

Saint Helena, Ascension and Tristan da Cunha is a British Overseas Territory comprising three distinct island groups in the South Atlantic Ocean. Jamestown, on Saint Helena, serves as the territory's capital. English is the official language, and the pound sterling — in a locally issued form — is used alongside the UK pound. Culturally, the islands blend British administrative tradition with small, self-sufficient communities shaped by centuries of maritime isolation and volcanic geography.

Most nationalities can visit Saint Helena and Ascension Island without a prior visa, though entry permissions and landing cards are required on arrival. Tristan da Cunha, the world's most remote permanently inhabited island, requires advance permission from the island administrator to visit. Travellers should consult the official territory government websites for current entry conditions, as access can depend on available transport.

Jamestown's Jacob's Ladder — a steep staircase of 699 steps climbing the cliff face — offers a defining view of the island's rugged interior. Longwood House, where Napoleon Bonaparte spent his final years in exile, is a preserved French-administered museum. Diana's Peak, Saint Helena's highest point, shelters endemic cloud-forest vegetation. On Ascension, Green Mountain provides a surprising green summit above an otherwise arid landscape. Tristan da Cunha's Edinburgh of the Seven Seas, one of the world's remotest settlements, sits beneath the Queen Mary's Peak volcano.

Saint Helena enjoys a mild subtropical climate, with temperatures ranging from around 17 °C in winter to 28 °C in summer, moderated year-round by southeast trade winds. Ascension Island is drier and hotter, regularly reaching 30 °C. Tristan da Cunha is cooler and windier, with temperatures typically between 8 °C and 20 °C; its weather can be changeable and rough. Light layers are advisable on all three islands regardless of season.

• Napoleon Bonaparte died on Saint Helena in 1821.
• Tristan da Cunha is the world's most remote inhabited island.
• Saint Helena's entire population numbers under 5,000 people.
• The territory spans three islands across thousands of kilometres.
• Saint Helena Airport only opened for commercial flights in 2016.

• sainthelena.gov.sh — official Saint Helena government portal
• ascension.gov.ac — official Ascension Island government site
• tristandc.com — Tristan da Cunha island administration and visitor information
• gov.uk/world/saint-helena-ascension-and-tristan-da-cunha — UK Foreign Commonwealth & Development Office territory page