On the first day, got on the helicopter, fastened my sheat belt, set headphone on my head,,, and then there seemed to be some machine trouble, the pilot cancelled its flight because "the safety first" he said. The staffs made re-schedule quickly, so I could enjoy the flight on the next day safely. Thank you Cookie-san and the pilot Samantha -san, It was such a incredible experience! Only one minus point is there were no red lava fountains and lava flow at all (I knew there were no eruption these days, but still I miss it).