To be honest, it's really great. I didn't expect Jigokudani to be so beautiful before I came to Japan. But the sulfur smell in the air is so bad.
In terms of duration, for tourists who like photography, this place is very suitable for time-lapse shooting, which will take a little more time, about 1.5-2 hours. For tourists who just want to see the scenery and take some check-in photos, it takes about 1 hour to go back and forth.
It's a pity that I can't go up to Oyunuma in winter. I want to try it again when summer comes.