川床 riverbed

　川床は、侵食された柱状節理のように見えます。1000万年程前に、オレンジ色に輝く溶岩流がここを流れたのでしょう。

　キラウエア火山では溶岩流を見るための展望台が設置されているそうです。70年程前の伊豆大島の三原山の大噴火では、マグマを見に行き、その神秘さに魅せられたのか、溶岩湖に身を投げる人が何人もいたそうです。

　This riverbed looks like an eroded columnar joint. I think an orange lave current probably came down here about 10 million years ago.

　I hear there is an observation deck to see lava flows at Kilauea volcano. A large eruption occurred at Mt. Mihara on Izu Oshima about 70 years ago. There were many people who went to see the magma and some of them threw themselves into the lava lake, probably because they were fascinated by the mystery landscape.