Kogano Falls, on the outer caldera rim above the Aso Valley, is a pair of “husband and wife” falls: the male fall, about 80 m high, and the female fall, about 100 m high. In midwinter, cold winds blowing from the Aso Valley freeze them into a powerful frozen waterfall.
How much the falls freeze depends on how cold the winter is. Check Aso City’s announcements for the 2027 illumination dates
Seasons are typical guides. Snow, ice and drift ice depend heavily on each year’s weather.
The ice covering the rock face is a natural sculpture of frozen water, sometimes called “ice flowers.” During the winter period there is also an evening illumination, when you can see the lit-up frozen waterfall. In early spring the sound of the ice cracking and falling echoes through the area, and it is said to announce the arrival of spring in Aso.
The frozen male and female falls straight ahead. Illuminated at night
In 2025 it ran 18:00–20:00 and was free (parking charged). Dates for 2027 have not been announced
Prices may change. Check the official website before you go.
Prices and availability are shown on Agoda.
ZooKyushu ・ Kumamoto & Aso
A zoo in Aso City where you can interact with 350 animals of 60 species. It centers on animal shows and close-contact facilities with bear cubs, capybaras, and penguins. It's about 1.5 km from JR Aso Station, and highway buses between Kumamoto and Oita/Beppu stop in front of the park.
Rime iceSeasons, hours, prices and access are based on official sources such as the spot’s own website, local governments and tourism associations. Winter weather often causes suspensions and road closures, so check the official website before you go.
Last checked: 2026-10-06
