Temperature warning sign
This sort of sign is fairly common across Iceland's geothermal areas, warning visitors that the geothermal features can be scalding hot.
This image is from the presentation "A Tour of Elemental Iceland - Hellesheidi, Reykjadalur, Strokkur".

Go to presentation where this image occurs.
Go to location in presentation where this image occurs.
Copyright 2001-2016 alavigne.net.