10 places in 9 countries · updated 14 October 2026
In short: By our ranking, the most beautiful coral reefs in the world are Great Barrier Reef (Australia), Aldabra (Seychelles) and Raja Ampat Islands (Indonesia). The list covers 10 coral reefs in 9 countries. Australia has the most, with 2. Last updated 14 October 2026.
A coral reef is a structure built by living animals. Tiny polyps secrete limestone skeletons, colony upon colony, while microscopic algae living in their tissues feed them and give them colour. Over thousands of years this growth produces barriers, atolls and lagoons that are visible from the air as bands of turquoise against deep ocean. What makes a reef world class is that double scale: from above, a shape drawn across the sea; from below, a crowded city of corals, fish and sea fans in clear water.
The collection covers the main reef forms. The Great Barrier Reef off Queensland is the largest reef system on earth, a chain of thousands of individual reefs and islands. The Belize Barrier Reef stretches along the Caribbean coast of Central America, and Tubbataha in the middle of the Sulu Sea is a pair of remote atolls. Fakarava in French Polynesia encloses a vast lagoon within a ring of coral, Aldabra in the Seychelles is a raised coral atoll home to giant tortoises, and Raja Ampat in eastern Indonesia is known for some of the richest marine life ever recorded. Ningaloo, on Western Australia's coast, is a fringing reef that grows close to shore.
Every reef here was chosen for how it looks and the list is ordered by beauty. Each has its own description, a photograph credited to its author and a place on the map, and the section also opens country by country on separate pages.
In this list
| # | Place | Type | Country | UNESCO |
|---|---|---|---|---|
| 1 | Great Barrier Reef | Coral reef | Australia | ✓ |
| 2 | Aldabra | Coral reef | Seychelles | ✓ |
| 3 | Raja Ampat Islands | Coral reef | Indonesia | |
| 4 | Belize Barrier Reef | Coral reef | Belize | ✓ |
| 5 | Tubbataha Reef | Coral reef | Philippines | ✓ |
| 6 | Ningaloo Reef | Coral reef | Australia | ✓ |
| 7 | Fakarava | Coral reef | French Polynesia | |
| 8 | New Caledonia Barrier Reef | Coral reef | New Caledonia | |
| 9 | Hanauma Bay | Coral reef | United States | |
| 10 | Rainbow Reef | Coral reef | Fiji |
Australia · 37.6 km from Port Douglas16.400° S 145.800° E

At around 344,400 square kilometers and roughly 2,300 km long, the Great Barrier Reef isn't one reef so much as some 3,000 individual reefs and hundreds of islands strung together — a footprint about the size of Italy or Japan, and by most measures the largest living structure ever built by living organisms, coral included. It's living habitat for well over a thousand fish species, hundreds of types of hard and soft coral, and dozens of species of whales, dolphins, and sea turtles moving through it at different times of year.
Did you know? On 11 June 1770 James Cook's ship Endeavour ran aground on the reef, and repairing her took about seven weeks.
Seychelles9.416° S 46.416° E

Aldabra is one of the great natural wonders of the Indian Ocean: a ring of low coral islands around a vast, shallow lagoon, far out in the south-western corner of the Seychelles. It is the second-largest coral atoll on Earth after Kiritimati and the largest raised coral reef, about 34 km long and 13 km wide. Its lagoon covers nearly 200 square kilometres and empties by some two-thirds at low tide, when the sea rushes out through deep channels between the islands. Four larger islands, Grande Terre, Malabar, Picard and Polymnie, form the rim, their surface a jagged, pitted limestone known locally as champignon, fringed by mangroves.
Did you know? The atoll is made up of some 46 islands, and its highest point is an unnamed sand dune only about 16 metres above the sea.
Indonesia0.233° S 130.517° E

Raja Ampat is a scattering of more than 1,500 islands, cays and shoals off the northwestern tip of New Guinea, gathered around four large islands: Waigeo, Batanta, Salawati and Misool. The name means "Four Kings", and it comes from a local legend in which a woman found seven eggs, four of which hatched into the kings of the four main islands. Above the water the archipelago is all forested hills and limestone; below it lie the reefs of the Coral Triangle, the stretch of Southeast Asian seas with the richest marine life on Earth.
Did you know? Archaeological finds show that people first reached Raja Ampat more than 50,000 years ago, when Misool and Salawati were still joined by land to New Guinea.
Belize · 29.9 km from Belize City17.262° N 88.053° W

The Belize Barrier Reef runs for roughly 300 km parallel to the Caribbean coast of Belize, a long pale line of breaking surf a few kilometres to some tens of kilometres offshore, with a shallow turquoise lagoon behind it and deep blue water beyond. It is the centrepiece of the Mesoamerican Barrier Reef System, which stretches about 900 km from Mexico's Yucatán to Honduras and ranks as the second-longest coral reef system in the world. In 1842, in his book on coral reefs, Charles Darwin described it as the most remarkable reef in the West Indies.
Did you know? In the north the reef runs as little as 300 metres offshore, while in the south it lies up to about 40 km from the coast.
Philippines8.953° N 119.868° E

Tubbataha sits in the middle of the Sulu Sea, about 150 km southeast of Puerto Princesa, with nothing around it but open water. The protected area spans roughly 970 km² and takes in two large atolls, the North and South Atolls, and the smaller Jessie Beazley Reef some 20 km to the north. The name comes from Sama-Bajau words meaning a long reef that surfaces at low tide. The islets have no fresh water, so no one has ever lived here, and that isolation is the main reason the reef survived in such good condition.
Did you know? A subspecies of the black noddy, a small dark tern, breeds nowhere in the world except Tubbataha, nesting in the few trees and bushes of its islets.
Australia22.739° S 113.628° E

Ningaloo is a reef you can wade out to. Along the coast of Western Australia's North West Cape, the coral grows not far beyond the beach — in places less than 500 metres offshore — so that you can step off white sand into a lagoon and float straight over coral gardens. Running for about 260 km, it is Australia's largest fringing reef, and its meeting of arid cape, rugged ranges and a vivid turquoise lagoon makes it one of the most striking coastlines on the continent.
Did you know? In December 2015 the short-nosed sea snake, feared extinct for 17 years, was rediscovered on Ningaloo Reef.
French Polynesia16.310° S 145.625° W

Fakarava is a ring of coral sand and reef some 60 km long and 21 km wide, enclosing a lagoon of more than 1,100 square kilometres in the Tuamotu Archipelago of French Polynesia. Seen from the air, it is a thin rectangle of palm-covered islets drawn around an inland sea whose colours shift from pale turquoise over the sand flats to deep blue in the middle. The land itself is barely above the water, just 24 square kilometres of it, which makes the atoll feel like the sea briefly decided to become shore.
Did you know? Fakarava is the second-largest atoll in the Tuamotus after Rangiroa, and also goes by the older names Havaiki-te-araro, Havai'i and Farea.
Lagons de Nouvelle-Calédonie
New Caledonia20.412° S 164.566° E

Around the main island of New Caledonia, Grande Terre, runs a ring of coral some 1,500 kilometres long: the longest continuous barrier reef on Earth and, by overall size, third only to Australia's Great Barrier Reef and the Mesoamerican reef. In places it stands up to thirty kilometres offshore, and in the northwest it carries on for nearly two hundred kilometres beyond the tip of the island. Inside it lies one of the largest lagoons in the world, about 24,000 square kilometres of shallow water averaging only some twenty-five metres deep, so that from the air the island floats in a band of pale turquoise edged with a white line of surf.
Did you know? Researchers have counted 146 distinct types of reef structure in New Caledonia, a variety matched only by Fiji.
United States · 17.6 km from Honolulu21.269° N 157.693° W

Hanauma Bay is a volcanic crater that the ocean has broken into. On the southeast shore of Oʻahu, a curving ring of tuff cliffs encloses a sheltered bay with a crescent of sand at the back and a fringing coral reef just offshore, so that from the rim the whole bowl can be taken in at a glance.
Did you know? At the height of its popularity the bay received more than three million visitors a year.
Fiji16.777° S 179.932° E

Rainbow Reef earns its name honestly. In the Somosomo Strait, the channel between the Fijian islands of Taveuni and Vanua Levu, strong tidal currents pour nutrient-rich water over the reef, and the soft corals that feed on it grow in extraordinary density and colour — orange, pink, purple, red, waving open when the current runs. Fiji calls itself the soft coral capital of the world, and this reef is the main reason why: it is one of the most celebrated dive areas in the South Pacific.
Did you know? The reef lies at about 179.9 degrees east, just short of the 180th meridian, which runs straight across neighbouring Taveuni.
Places are chosen for how they look, not for how famous they are: each one has its own description and a photograph credited to its author. The order is a single world ranking that weighs the beauty of the place in curated photography together with how widely it is documented — the number of language editions of its encyclopedia article and how often that article is read in a year. The list is rebuilt as places are added, so the order and the counts on this page are always current.