Volcanoes
Iceland
Iceland and its volcanoes have a long-running relationship.  I
liked this volcanic profile because it was over a lake.
Here is a volcano that presents itself over land.
Climbing a volcano to its rim was easy.  Here you can see the
volcanic crater and a cinder cone.
Cinder cones are smaller volcanoes, often within the crater
of a host, and capable of eruptions on their own.   
If you have a high speed internet connection,
watch the Intrepid Berkeley Explorer's complete,
free video of this trip, "Land of Lava, Waterfalls
and Glaciers", by clicking on:
http://www.
adventurepics.com/IBE/video1.aspx?VF=Iceland.
wmv