"With our existing lighting system nearing the end of its lifespan, we have decided to focus on a major updated to this system, while continuing to further our conservation efforts in the cave.

The cave is open year-round, but roads may be closed in winter, making it temporarily inaccessible. Visitors will want to bring multiple light sources, warm layers and sturdy shoes. Lava River ...

A magical world of blue is lighting up the winter nights in a popular ... The show, called “Ao no Dokutsu (blue cave) Shibuya,” features about 600,000 blue LEDs along an 800-meter stretch ...