(EN) Tonga, su thecommonwealth.org. URL consultato il 18 gennaio 2022.
«Tonga is two roughly parallel chains of around 170 islands in the south-western Pacific. Neighbouring countries include Fiji to the west, Cook Islands to the east and Samoa north. Only 36 islands are inhabited. Tonga’s western islands are volcanic (four with active volcanoes) and sit well above sea level. Those to the east are coral and are more low-lying.»
