The most interesting facts about Tonga include the International Date Line, migrating humpback whales and volcanic islands.
Fast facts
Official name: Kingdom of Tonga
Capital city: Nuku’alofa
Population: 104,889
Area: 747 sq km
Major languages: Tongan, English
Major religions: Christianity
Time zone: UTC+13 (Tonga Standard Time)
Fun facts about Tonga
1. Tonga has been inhabited for around 3,000 years. The first people to arrive were the Austronesian-speaking people of the Lapita culture, famously known for their elaborately decorated pottery.
2. Tonga is the only monarchy in Oceania.
3. In 1616, Dutch explorers became the first Europeans to visit Tonga.
4. Between 1773 and 1777, famed British explorer Captain James Cook visited Tonga three times.
5. Cook referred to Tonga as the ‘Friendly Islands’ because the indigenous people gave him and his crew a warm welcome.
6. In 1965, six Tongan teenagers survived for 15 months on a remote uninhabited island. The event was dubbed the real “Lord of the Flies” after the 1954 best-selling novel by William Golding. A Hollywood studio bought the rights to make a film of the events.
7. From the 1830s onwards, missionaries converted chief Taufa’ahau Tupou to Christianity, who in turn then converted fellow islanders. Today around 99% of Tongans identify as Christian.
8. As such, Tonga is a deeply conservative Christian country and completely shuts down on Sundays when it strictly observes the Sabbath. On Sundays, recreational activities such as swimming are considered ‘provocative’.
9. Furthermore, respectful dress is very important in Tonga. It is illegal for men and women to be topless in a public place.
10. Tonga is made up of over 170 islands spread across an area of the Pacific Ocean, approximately the size of Japan.
11. Of those islands, only 36 are inhabited.
12. Tonga’s islands are located near the International Date Line, the point on Earth where the calendar changes from one day to the next.
13. Tonga, along with Samoa and Kiribati, are among the first countries to celebrate the New Year and witness the dawn of each new day.
14. In 2014, a new island called Hunga Tonga-Hunga Ha’apai was created in Tongan waters after an underwater volcano erupted.
15. Tongan King Taufa’ahau Tupou IV, who reigned from 1965 to 2006, was known as the world’s heaviest monarch. At one point he weighed 210kg before he lost more than 75kg.
16. Tonga’s flag has a cross of red as a symbol of the deep-rooted Christian religion in the country. The red in the flag represents the blood that Jesus shed at his Crucifixion and white signifies purity.
17. There are active volcanoes on four of Tonga’s islands, including Tofua Island, whose crater is filled with hot water.
18. In 2018, Tonga was devastated by Cyclone Gita, thought to be the worst storm to hit the country in 60 years. The country’s Parliament building was destroyed by winds over 230km/h.
19. Tonga is known for its hundreds of blowholes called Mapu’a ‘a Vaea (Chief’s Whistles). The blowholes spread 5km along the coast can spurt water up to 30m into the air.
20. In 2004, Tonga successfully sued its court jester in an American court. The jester had spent 13 million GBP (~27,510,00 USD) of the king’s money on bad investments.
21. Tonga, like many Pacific nations, has one of the fattest populations in the world. A 2026 report ranked Tonga as the world’s most obese nation for women and the fourth most obese nation for men.
22. Tonga is home to the South Pacific’s equivalent of Stonehenge. The mysterious Ha’amonga ‘a Maui (Maui’s Burden) splits opinions, with some archaeologists saying Tu’itatui, the 11th Tu’i Tonga, built it, while others say it was actually ancient Chinese explorers.
23. Boxer, Paea Wolfgramm won Tonga’s first and only Olympic medal in the 1996 Atlanta Olympics/. He won a silver medal for super heavyweight boxing.
24. At the 2016 Rio Olympics, Tongan athlete Pita Taufatofua shot to fame for breaking official rules by going shirtless during the opening ceremony. The scenes went viral online.
25. Tonga is a great place to spot humpback whales. The whales migrate from Antarctica to breed in the warmer waters of Tonga from July to October.
26. Pita Taufatofua again hit the headlines when he repeated the stint in freezing temperatures at the 2018 Winter Olympics in Seoul. He was the only athlete from Tonga.
27. It is thought that Tonga has the world’s largest number of Latter-day Saints (more commonly known as Mormons) per capita. Around 60% of Tongans are considered to be Mormons.
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Caitriona Maria is an education writer and owner of The Facts Institute. With seven years of teaching experience and a background in educational content, she specialises in creating clear reference resources about countries, geography and global topics.