Tongatapu is the first name on the list of the most beautiful islands in Tonga that Toplist has compiled for you. Tongatapu, Tonga's most accessible island, offers much more than the country's largest international airport. This Tonga's largest island also has some of the most well-known historical sites in the South Pacific, as well as a diverse range of natural attractions where you can spend an entire day hopping from one to the next. The Ha'amonga 'a Maui Trilithon, also known as the "Stonehenge of the South Pacific", is a 5km (3 miles) stretch of breathtaking blowholes on Maui's southern coast, as well as the majestic 'Anahulu limestone caves.

Nuku'alofa, Tonga's capital, is located on the northern coast of the 257-square-kilometer (100-square-mile) island. Between the amazing array of handicrafts at the Talamahu Market and the grand Victorian-style Royal Palace, culture and royalty can be experienced here. Many of Tonga's most popular water activities, such as whale swimming tours, island-hopping boat trips, snorkeling, scuba diving, and fishing, depart from Nuku'alofa. Visitors may choose to stay in one of Nuku'alofa's guesthouses or hotels, at one of the island's beach resorts on the western side, or on one of the offshore islands.

Location: Tongatapu Island, Tonga

Vava’u is not only one of the most beautiful islands in Tonga, but also one of Tonga's most popular island groups for tourists, with island resorts, the bustling town of Neiafu, and a South Pacific sailing hub. Vava'u's beauty shines beneath the waves, with crystal visibility of up to 30 meters illuminating remote sea caves and historically significant shipwrecks.

Swimming with humpback whales and snorkeling in majestic sea caves like Swallows' Cave are just a few of the activities available in Tonga. With a labyrinth of inlets and islands crammed together, it is also a great sailing spot. Visitors of all abilities can explore Vavau's underwater majesty thanks to a variety of snorkeling locations. Visitors can stay in one of Neiafu's hotels or guesthouses, on one of the island resorts scattered across the otherwise uninhabited islands, or in villas and resorts scattered across the islands connected to the main island by causeways.

Location: Vava’u Island, Tonga

‘Eua is the next name on the list of the most beautiful islands in Tonga that Toplist would like to introduce to you. 'Eua is an amazing island to visit if you want to see more than Tongatapu but do not have a lot of time. It is only a short flight or a not-so-difficult ferry ride away from Tongatapu. 'Eua's combination of breathtaking beauty and rugged landscapes makes it an ideal destination for adventure and eco-conscious travelers. Explore northern 'Eua's spectacular cliffs, caves, and sinkholes, or travel to the rocky southern coast.

The island is Tonga's oldest, with natural archways, cave-filled limestone cliffs, and rock gardens that provide habitat for wild horses. Not to mention the forest of 'Eua National Park, where nature lovers can spot the native red shining parrot. 'Eua may be Tonga's second-largest island, but it is still relatively undeveloped, with only six lodging options for visitors. Furthermore, all of the accommodations are on a budget, making it a budget-friendly Tonga destination.

Location: ‘Eua Island, Tonga

Ha’apai is the next island on the list of the most beautiful islands in Tonga that Toplist has compiled for you. Despite the location in the heart of Tonga, Ha'apai is largely ignored by visitors. The Ha'apai island group has 62 islands, but only the most dedicated travelers will venture beyond Lifuka, Foa, and Uolevu islands. Nonetheless, Ha'apai is the ideal location for getting away from it all.

Kayaking, snorkeling, and especially kitesurfing, are all popular activities on Ha'apai's idyllic beaches, which are protected by sheltered lagoons. Scuba diving in the crystal clear waters is a must, as is swimming with humpback whales in the uncrowded waters. In the town of Pangai, the island's hub, there are guesthouses, one cafe/restaurant, a bakery, a market, and a limited range of essential services. Travelers will either stay in a Pangai guesthouse or at one of the eco beach resorts, many of which offer an off-the-grid experience.

Location: Ha’apai, Tonga