There is no British diplomatic representation in Tonga. The British High Commission in Suva can provide routine consular assistance. In an emergency you can also contact the New Zealand High Commission in Nuku’alofa.
Although there’s no recent history of terrorism in Tonga, attacks can’t be ruled out. See Terrorism
Most visits to Tonga are trouble free. The crime rate is relatively low. However, petty crime and theft do take place. You should remain vigilant, especially at night. See Crime.
UK health authorities have classified Tonga as having a risk of Zika virus transmission. For information and advice about the risks associated with Zika virus, visit the National Travel Health Network and Centre website.
If you’re abroad and you need emergency help from the UK government, contact the nearest British embassy, consulate or high commission.
Take out comprehensive travel and medical insurance before you travel. Medical evacuation from Tonga is required for most non-basic medical problems. You should make sure that your policy covers you for medical evacuation by air ambulance.