洞窟 Agate Mine (Ibaraki Pref)Unfortunately, it is now prohibited to enter this cave. By Taka, 2 years2023年3月22日 ago
洞窟 Utsuno Cave (Tochigi Pref)There are some lights set inside the cave. But you’ll need your lights for safety. By Taka, 2 years2023年3月22日 ago
洞窟 Abokke Gold Mine (Ibaraki)You’ll need a permission of land owner if you want to go. By Taka, 2 years2023年3月22日 ago
洞窟 Yasato Cave (Ibaraki Pref)Relatively clean I think. You need to crawl at some points. By Taka, 2 years ago
洞窟 Fujin Cave (Ibaraki Pref)Located in Hitachi City. A house of wild animals. By Taka, 2 years2023年3月22日 ago
洞窟 Suwa Artificial Cave (Ibaraki Pref)Located very close to Suwa cave. By Taka, 2 years2023年3月22日 ago
洞窟 Ohkubo Cave (Ibaraki Pref)It might be not allow to enter this cave now. By Taka, 2 years2023年3月22日 ago
