To the south of Okinawa there is a beautiful illuminated cave named Gyokusendo Cave, this cave occupies the second largest position among these series of caves in Japan.Inside the cave it is well maintained and the walking paths are comfortable and well lit.It is located in the southern park of Okinawa and it is must visit spot. Gyokusendo Cave is located under Okinawa World theme park in Nanjo City.People who want to visit Gyokusendo cave and enjoy its beauty can have a long walk through the cave along an 850 meter long walkway that is built just above the cavern floor.Many displays are provided within the cave.Few benches are also provided to sit on along the way and the most attraction for this cave is the clear underground river running along the pathway.The cave may not provide entrance for everyone as the humidity hovers around 80 percent and the pathway is extremely narrow at many points.