Here is the Champagne Pool at the Waiotapu thermal area (New Zealand). Over 62m deep, the Champagne Pool is 165 degrees Fahrenheit on the surface and was formed by ancient hydrothermal eruptions. The pool displays nearly every hue of color due to mineral dissolution (murcury, sulphur, gold, silver, arsenic, thallium, and antimony). Sintering (fusing from powder) of the minerals occurs at the edge of the pool.
Camera: D700
Lens: 16-35mm f/4.0
Shutter: 1/180 sec
Aperture: f/6.7
ISO: 200
Camera: D700
Lens: 16-35mm f/4.0
Shutter: 1/250 sec
Aperture: f/8.0
ISO: 200
This is what we had to walk on the cross the pool:
Camera: D700
Lens: 16-35mm f/4.0
Shutter: 1/180 sec
Aperture: f/6.7
ISO: 200
Camera: D700
Lens: 16-35mm f/4.0
Shutter: 1/180 sec
Aperture: f/6.7
ISO: 200