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geology

Kelimutu Crater Lakes

Three summit lakes can change colour while remaining neighbours in the same volcanic landscape.

Indonesia

Illustration of Kelimutu Crater Lakes
Kelimutu Crater Lakes · USURPR illustration

The story behind the place

Kelimutu on Flores holds three crater lakes. A separate western lake lies apart from an eastern pair divided by a narrow rock wall. Their colours change: NASA’s dated Landsat images show different combinations within only a few years. Volcanic gases and chemical reactions in the water help explain those changes. The scene therefore shows one illustrative colour combination, rather than promising that a future visitor will see three permanently fixed colours.

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