Ōwakudani- or the ‘Great Boiling Valley’ was created 3000 years ago Kani-Yama erupted and collapsed. Today hydrogen sulphide steams from the yellow ground, and this hot water is used to boil Onsen eggs causing them to go black in the sulphurous water. A legend says that by eating one you extend your life by 7 year- well I ate 3 so that’s 21 years!!!Read more