The Changing Color of Kelimutu Lakes, It Is Unpredictable

Few natural wonders shift as mysteriously as the Kelimutu lakes in Flores, Indonesia. Nestled atop a volcano, these three crater lakes transform without warning—each hue tied to science, spirit, and the deep pulse of the Earth.

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Three Lakes, Three Spirits, Shifting Hues

Kelimutu hosts three distinct lakes, each with its own name and cultural meaning. Locals call them Tiwu ata Mbupu (Lake of Old People), typically pale blue; Tiwu Nuwa Muri Koo Fai (Lake of Young Men and Maidens), often green; and Tiwu Ata Polo (Enchanted Lake), usually red or black. Despite their colors, all are believed to be final resting places for souls—where the afterlife meets geology. The shades shift unpredictably, sometimes multiple times a year, making every visit a unique encounter.

Kelimutu Lakes changed colors

What Triggers the Color Shift?

The transformation stems from chemical reactions within the volcanic crater. Fumaroles—vents releasing steam and gases like sulfur dioxide—stir the lake waters from below. This upwelling brings mineral-rich, oxygen-poor water to the surface, altering how light reflects off dissolved metals like zinc and lead. When oxygen levels rise, the lakes can turn blood red or dark brown—similar to how hemoglobin changes color in human blood.

NASA’s View of a Living Landscape

Satellite images from NASA reveal just how dynamic Kelimutu is. Between 2014 and 2017, the lakes shifted visibly in color and pattern. Reports from The Jakarta Post noted six changes in 2016 alone. Yet, according to Indonesia’s Volcanology and Geological Disaster Mitigation Center (PVMBG), these shifts don’t signal increased volcanic risk. The area remains safe—and deeply compelling—for travelers.

kelimutu lakes crater
kelimutu lakes crater
Kelimutu Lakes changed colors
Kelimutu Lakes changed colors

Frequently Asked Questions

How do Kelimutu Lakes change color?
The color change is driven by chemical reactions in the crater, influenced by fumarole activity and oxygen levels in mineral-rich water.
Are the Kelimutu lakes dangerous to visit?
No, the color changes are not linked to volcanic threats. PVMBG confirms the site remains safe for tourists.
When is the best time to see the color change?
There’s no fixed season—the shifts are unpredictable. Visiting anytime between May and September offers clearer weather for viewing.
Can you visit Kelimutu on a Komodo trip?
Yes, many Boat Komodo Trip itineraries include an overland extension to Kelimutu in Flores for a full island experience.