Volcanic lighting erupts from the highly active Sakurajima volcano on the Japanese island of Kyushu.

The volcano explodes into life as it sprays burning hot ash high into the air - followed by a deafening shockwave. The lightning is very rare and does not appear in a normal ash cloud but in clouds from pyroclastic flows - which are mixtures of rock fragments and hot gases. Pyroclastic flows are the most dangerous hazards on volcanoes and so I was a little bit afraid when a big one was happening in front of me - but in fact the whole experience was a great adventure.