ICELAND | geothermal pool | August 2010 | 46826A

Careful where you walk. The ground sounds hollow even some distance from pools and vents, and you can hear (but not see) bubbling and hissing under your feet. Second degree burns await you if the ground gives way. Presented with a sudden light show in the sky, I've lined up a row of red rocks in the middle distance to connect the distant hills and sky with the amazing foreground textures. Bæjarfjall.