Lake Saiko Bat Cave
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A nationally designated Natural Monument It was opened to the public in April 1998 and has lava stalactites and a ropy-lava bed. The cave has branch caves and the total is 350 meters long, which is the largest scale among lava caves at the foot of Mt.Fuji. Inside the cave, you can see stalactite and ropy-lava rock which were formed when the lava from Mt.Fuji’s eruption was exposed to air and got solid emitting gases. As it is not very cool in summer and is warm in winter inside the cave, and as it is different from other caves, many bats lived in the past for their hibernation. However, land developments and random trespassing brought the bats to the brink of extinction. Now, the cave is managed and the preservation area was placed in the back, so the number of the bat is growing little by little every year.
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Venue Address
401-0332 2068 Saiko, Fujikawaguchiko-machi, Minami-tsuru-gun
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