Japan by Region
Complete List by Prefecture
Fukuoka Prefecture
Hiraodai Nature Observation Center- Horayama
Ida Shaft Headframe
Iwaya shōnyūdō
Kanmon Kaikyo Tunnel- Mejiro-do
- Ojika-do
Seiryu Cave- Senbutsu-do
- Tagawa City Coal and History Museum
- Gifu Prefecture
- Enku Bora
- Gujo Limestone Cave
- Hida dai-shonyudo
- Jomon shonyudo
- Miyama Shonyudo
- Ohtaki shonyudo
- Sekigahara dai-shonyudo
- Gunma Prefecture
- Fuji-do
- Kanehon Quarry
- Kannon Dokutsu
- Manza Onsen Kumashiro Cave
- Odaira shonyudo
- Oya History Museum
- Ushibushi dōkutsu
- Hokkaido Prefecture
- Fugoppe-dokutsu
- Furaku Cave
- Iwaya Kannon
- Nakatonbetsu Limestone Cave
- Shelter No. 20
- Temiya Cave
- Tohma Shonyudo
- Yubari Coal Mining Museum
- Ishikawa Prefecture
- Hanibe Caves
- Kigan Yusenkyo
- Ogoya Mine Museum
- Satoyama Mirai Museum
- Seppun Tunnel
- Iwate Prefecture
- Akka-do
- Byakuren-do
- Funakubo Shonyudo
- Rokan-do
- Ryusen-do
- Takkoku no Iwaya Temple
- Uchjimagi-do
- Yugen-do
- Kagoshima Prefecture
- Akasaki shonyudo
- Chikura Cavern
- Fucha
- Kojima Kurago
- Kumaso ana
- Mizonoguchi dokutsu
- Shoryu-do
- Sumiyoshi Ankawa
- Ufuyaguchi Shonyudo
- 徳之島 - Tukunushima - Tokunoshima - Tokuno Island
- Ginryu-do
- Kiinen Gongen
Unbuki Underwater Cave Entrance- Yooki Cave Ruins
- Kanagawa Prefecture
- Benten Cave
- Enoshima Iwaya Cave
- Mandarado Yagura Caves
- Shitodo
- Taya Caves
- Zeniarai Benzaiten Ugafuku Shrine
- Kōchi Prefecture
- Ioki Cave
- Mikurodo Cave
Nakatsu Gorge- Ryuga-do
- Saruta-do
- Shikoku Karst Natural Park
- Shobu Cave
- Miyazaki Prefecture
- Amano Yasugawara
- Nanaori shonyudo
- Saitobaru Burial Mounds
- Takachiho Gorge
- Udo-jingū
- Nara Prefecture
- Dorohacchō Gorge
- Fudo-kutsu
- Goyomatsu shonyudo
- Tohro-no iwaya
- Komori kutsu
- Menfudo shonyudo
- Oita Prefecture
- Furen shonyudo
- Hakusan Shrine
- Hakusan Shrine
- Inazumi suichu shonyudo
- Onagara shonyudo
- Shishi Gongen
- Taio Kinzan
- Okayama Prefecture
- Bicchu-Kanachi ana
- Diamond cave
- Fukiya Copper Mine
- Ikura-do
- Kanba-no Oni-no ana
- Maki-do
- Rashōmon Natural Bridges
- Okinawa Prefecture
- Daisekirinzan
- Cave Okinawa
- Futenma Cave
- Valley of Gangala
- Gyokusen-do
- Hoshino-no ana
- Janeh Cave
- Former Japanese Navy Underground Headquarters
- Kin-nisshu-do
- Gold Cave Café and Bonsai Garden
- Kumaya Cave
- Matsuda Limestone Cave
- Nakabari Limestone Cave
- Niya-Thiya Cave
- Shimuku Gama Cave
- Tera Cave
- Toriike Pond
- Yajagama Cave
- Ishigaki Island
- Ishigaki Do
- Ryujin Limestone Cave
- Sabichi Cave
- Yaeyama Limestone Cave
- Saitama Prefecture
- Gankutsu Hotel
- Hashidate shonyudo
- Iwamuro Kannon
- Osuzawa Limestone Cave
- Shutoken Gaikaku Hosuiro
- Yoshimi Hyakuana
- Shizuoka Prefecture
- Hito-ana
- Koboriya shonyudo
- Komakado Fuketsu
- Muro Iwa Cave
- Ryugashi-do
- Seikoen Lava Tube
- Toi Kinzan
- Washizawa Fuketsu
- Tokyo Prefecture
- Daimasu shonyudo
- Kiyomigaoka Limestone Cave
- Kurasawa Shonyudo
- Mitsugo shonyudo
- Nippara shonyudo
- Ohtake shonyudo
- Grand Central Oyster Bar
- Tamagawa Daishi
- Yaechika
- Yozawa shonyudo
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