Located in the Joshinetsu Kogen National Park Mt. Shirane – often referred to as Kusatsu-Shirane – is a series of volcanic peaks, including some of the most active in Japan. At 2160 metres above sea level, Shirane is also one of the highest volcanoes in Japan and is said to hold the world’s most acidic lake in the Yugama crater.
Due to heavy snow in winter, the area around Shirane can only be visited from mid-April until early-November. Hiking trails span-out around the caldera through fertile alpine valleys home to unique flora and fauna. Buses running from the Kusatsu Bus Terminal put the area within easy reach, taking only 30 minutes / JPY1130 one-way. Trailheads are clearly marked and trails are well-maintained.
Mt. Shirane is an active volcano and your personal safety should be your first priority. The Japan Meteorological Agency provides real-time advice and warnings for the entire country. Prior to visiting Shirane, we recommend checking the following website.