I just discover this place...
Aogashima is a volcanic Japanese island in the Philppine Sea.
It looks to be Amazing place for photography.
Here is a link to read more about this wonderful place:
http://theadventourist.com/live-inside-an-active-volcano-on-aogashima-island
The official web site of Aogashima: (Japanese only)
http://www.vill.aogashima.tokyo.jp/top.html