At dawn, when the fog slowly retreats from the slopes of the Kelimutu volcano, three mirrors of water emerge that seem to be painted by a whimsical hand: one intense turquoise, one chocolate brown, one almost completely black. These crater lakes are located on the island of Flores, in the province of East Nusa Tenggara, at an altitude of about 1,640 meters above sea level. It is neither an optical illusion nor a local legend: the colors really change over the years, due to geothermal activity that alters the concentration of dissolved minerals and gases in the water.
The phenomenon has been scientifically documented for decades. The three lakes — Tiwu Ata Mbupu, Tiwu Ko'o Fai Nuwa Muri, and Tiwu Ata Polo — have changed shades multiple times throughout the twentieth and twenty-first centuries, shifting from shades of emerald green to blood red, from milky white to deep blue. No combination is permanent, and this makes each visit unique and unrepeatable. The local Lio population considers these lakes sacred: according to tradition, the souls of the deceased rest in their waters, divided by age and virtue.
The Three Lakes: What to See Up Close
The Kelimutu National Park, established in 1992, protects the entire volcanic area. From the main entrance, a well-marked path leads up to the edge of the craters: the walk takes about 20-30 minutes and does not require technical equipment, but it is necessary to pay attention to slippery sections in the morning hours. Once at the top, there are three distinct viewpoints, each overlooking a different lake. The two eastern lakes — Tiwu Ko'o Fai Nuwa Muri and Tiwu Ata Polo — are separated by a thin rocky ridge and often appear in contrasting colors, making the spectacle even more surreal.
The western lake, Tiwu Ata Mbupu, is the largest of the three and tends to maintain darker and more opaque shades. The crater walls are steep and crumbly, and park signs remind visitors not to get too close to the edge. The smell of sulfur is noticeable, especially on mornings with little wind. Bringing a light mask can be helpful for those sensitive to volcanic gases.
The Kelimutu Crater Lakes Ecolodge
A few kilometers from the park is the Kelimutu Crater Lakes Ecolodge, an accommodation that stands out for its attention to the environment and its privileged location. The ecolodge is immersed in tropical vegetation and offers wooden bungalows with views of the surrounding hills. The structure is designed for those who want to experience the lakes without giving up comfortable yet simple lodging, away from the environmental impact of conventional resorts.
The local staff can organize guided excursions at dawn, which represent the best time to visit the lakes. Staying directly at the ecolodge allows you to reach the park entrance ahead of groups arriving from Moni or Ende, which makes a significant difference in the quality of the visual experience and the tranquility of the place.
How to get there and practical advice
The reference city is Ende, the capital of Flores Island, reachable by plane from Bali or Kupang. From Ende, you continue to the village of Moni, the main access point to the park, traveling about 50 kilometers of mountain road: the journey by minibus or jeep takes between two and three hours depending on road conditions. Alternatively, some agencies offer private transfers directly from Ende airport.
The most important advice is to arrive at the lakes before dawn, ideally by 5:30 in the morning. In the early hours of the day, the slanting light enhances the color contrasts of the water and the mist creates an almost mystical atmosphere. After 9:00, with the arrival of organized groups and the sun already high, the experience loses much of its charm. The entrance ticket to the national park costs approximately 150,000 Indonesian rupiah for foreign visitors, but it is advisable to check the updated rates directly at the entrance, as they may vary.
When to go and what to expect
The dry season, which runs from May to October, offers the best conditions for visiting: less rain, safer trails, and higher visibility from the crater edges. During the rainy season, from November to April, low clouds can completely cover the lakes, making the journey disappointing despite the effort to reach them. Bringing warm layers is essential: at over 1,600 meters in altitude, morning temperatures often drop below 15 degrees Celsius, in stark contrast to the humid heat of the coast.
Those who visit Kelimutu rarely return disappointed, but it is helpful to arrive without rigid expectations about the colors: the lakes change continuously, and it is not possible to predict in advance what shade will be found. This unpredictability, after all, is exactly what makes the place so extraordinary.
