Gyokusendo Cave, Okinawa
Gyokusendo cave is located in the south of Okinawa, between Tamagusuku village and Gushikami village. It is claimed to have the greatest stalactites and stalagmites in Asia. At 5 kilometers, the cave is Japan’s second longest with 890 meters currently open to the public. Gyokusendo cave has 1,000,000 stalactites, which is the largest number in Japan.