What is it?

Buada Lagoon is a landlocked, brackish lake of roughly 30 hectares that sits like a green jewel in a natural depression at the centre of Nauru, the smallest island nation on Earth. Its still, algae-tinted water has no outlet to the sea, and its banks are crowded with coconut palms, mango trees, breadfruit, bananas and tomano — a lush, humid pocket of tropical fertility surrounded by the bleached limestone pinnacles left behind by a century of phosphate mining. For generations, Nauruan families raised ibija (milkfish fry) here, scooping them from the ocean and fattening them in the lagoon, a traditional aquaculture practice that made this small body of water a vital food source and a place of community ownership. Standing on the road that loops its edge, you hear roosters, rustling fronds and the distant hum of the island's single ring road; the air smells of wet vegetation and sun-warmed earth. It is not a manicured attraction with ticket booths or boardwalks — it is a working landscape, quietly beautiful, and utterly unlike any lagoon you have seen before.

Where is it?

Buada Lagoon lies inland in Buada District, in the south-central interior of Nauru, a 21-square-kilometre island in Micronesia roughly 300 km south of the equator. It's an easy drive from Yaren, the airport and the coastal hotels — Nauru's ring road circles the island in under 30 minutes, with a short spur road climbing inland to the lagoon. Visit between April and November, when the trade-wind season brings drier, calmer weather; the November-to-February wet season can be steamy and stormy, though the greenery is at its most vivid.

What makes it worth it?

Fewer than a couple of hundred leisure travellers reach Nauru in a typical year, which means that gazing over Buada Lagoon puts you in one of the most exclusive travel clubs on the planet. Visitors describe an eerie, moving contrast: the devastated moonscape of 'Topside', stripped bare for phosphate, giving way suddenly to this sunken circle of green — 'the island's beating heart', as one traveller put it. It is a place that makes you think hard about what nations trade for prosperity, and what endures when the mining ends. Locals may wave you over to talk about the fish their grandparents raised here, and those unhurried conversations often become the memory people carry home rather than the photographs. Years later, what stays with you is the stillness of the water, the smell of frangipani and rain, and the strange privilege of having stood somewhere almost no one else has.

How accessible is it?

The lagoon itself is completely easy — it's roadside, flat, free to view, and takes 30 to 60 minutes to walk or drive around; swimming is not recommended as the water is brackish, murky and privately used by surrounding landowners. The challenge is getting to Nauru at all: Nauru Airlines operates limited flights from Brisbane, Nadi, Tarawa, Majuro and Honiara, often only a few times per week, and return fares typically run A$900–2,000. Most nationalities need a visa arranged in advance through the Nauru Immigration Department (roughly A$50–100), usually requiring confirmed accommodation and onward flights. Lodging is limited to a handful of properties such as the Menen Hotel or Od-n-Aiwo, generally A$120–250 per night, and food and hire cars are pricey given everything is imported — budget A$200–350 per day on the ground. No fitness or gear is required beyond sun protection, insect repellent, cash in Australian dollars (card facilities are patchy) and a relaxed attitude toward island schedules.