The Evil Mountain Hell (鬼山地獄) is one of Hell Tour of Beppu Onsen, Oita Prefecture. The temperature of the pond is about 98 degrees celcius. It is also known as Crocodile hell. This pond uses the hot Onsen water to breed crocodiles. There are about 80 crocodiles in this pond. The temperature of the pond is about 98 degrees celcius.
Tourist Info.
Admission: 400 Yen for adult, 300 Yen for High school, 250 Yen Junior High, 200 Yen for kids.
Time: 8:00 to 17:00
There is parking and restroom.
8 Hell pass: 2,100 Yen for adult.
There is group discount.
Access
1. at Beppu Station.
2. Use local bus 2,5,24 to Umijigoku.
400 JPY
30 min
New Wave Samurai Movie. 
映画好き集まれ！ 
Oniyama Hell is also known as Crocodile Hell. There are about 80 Crocodiles in this pond. At the museum in this pond, there is a stuffed crocodile that was 71 years old. He was the oldest Crocodile ever.
Official web site:http://www.beppu-jigoku.com/images/English0.pdf