Yes, here is the Ojo de Dios, a natural, perfectly round lagoon above Terapaya. The guidebook says that some people have drowned due to funny currents caused by the hot water, but it looks innocent to me.

Camera model		iPhone 4
Shutter speed		1/1436
Aperture		f/2.6
Exposure		Normal program
Focal length		3.85mm
Flash		Off
Metering		Pattern
Brightness		9.6
ISO sensitivity		80
Latitude		19.467167˚ S
Longitude		65.794667˚ W
Altitude		3412.80 m
Location		Potosi Department, Bolivia

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