Mount Haruna (Harunafuji) & Lake Haruna Caldera

Category: alam | Location: Harunako-machi, Takasaki-shi, Gunma Prefecture

Presiding majestically over the central highlands of Gunma Prefecture at an elevation of 1,449 meters, Mount Haruna (Harunasan) is a dormant stratovolcano venerated as one of the 'Three Celebrated Mountains of Jomo' (Jomo Sanzan), alongside Mount Akagi and Mount Myogi. Nestled within its expansive prehistoric caldera basin at 1,084 meters above sea level lies Lake Haruna (Harunako), the second highest crater lake in Japan after Lake Chuzenji. Anchoring the shores of the lake rises 'Harunafuji' (1,391 m), an exquisite, nearly symmetrical pyroclastic cinder cone named for its uncanny resemblance to an immaculate miniature Mount Fuji. Ascending to the crest of Harunafuji is effortless aboard the Harunasan Ropeway, celebrated as Japan's first dual-cable gondola system, which whisks passengers from the lakeside station to the summit in just three scenic minutes. From the summit observation deck and the mountaintop Harunafuji Shrine, visitors are treated to an astonishing 360-degree panorama: the deep indigo expanse of Lake Haruna shimmering within the volcanic caldera below, the vast flatlands of the Kanto Plain, the jagged ridges of the Tanigawa Range, and even the genuine Mount Fuji rising above the southern horizon on clear winter days. Lake Haruna serves as an exhilarating four-season outdoor playground. In spring and summer, families flock to paddle iconic swan-shaped pedal boats across the glassy waters, ride horses along grassy lakeside trails, or trace the famous winding hairpin mountain roads immortalized worldwide as 'Mount Akina' in the cult street-racing anime franchise Initial D. In autumn (mid-October to November), the caldera slopes burst into a fiery symphony of red and golden foliage, while in deep winter, the entire lake surface freezes over for traditional ice hole fishing for wakasagi (smelt) and the spectacular lakeside 'Harunako Illumination Festa', which lights up the chilly mountain nights with hundreds of thousands of twinkling LED bulbs.