Oirase Keiryu Hotel by Hoshino Resorts, the only resort hotel situated along the Oirase Stream, is celebrating its 20th anniversary of walking alongside the local community with a special 20th-anniversary programme allowing guests to enjoy the four seasons of Aomori.
The Oirase Icefall Bus, adorned with the beauty of icefalls in its unique icefall pattern
A unique wrapped bus featuring a print of the world of “ice waterfalls” – representative of winter in Oirase Stream – will commence operation from 17 January 2026. This special design depicts the transformation of delicate ice into magnificent formations, taking as its motifs two particularly impressive ice waterfalls within Oirase Stream: “Mammon Rock” and “Chōshi Waterfall”.
Experience the spectacular night-time ice waterfall in all its fantastical glory on the 'Ice Waterfall Illumination Tour'
The frozen waterfalls of Oirase Gorge are a natural sculptural beauty, where a mere trickle of water dripping from the rock face freezes as it is exposed to the night air, gradually growing over time into impressive icicles. The night-time spectacle of delicate ice transforming into magnificent formations is illuminated. Mystical hues of light enhance the inherent beauty of the frozen waterfalls.
Oirase Stream Bus Tour: Experience the scale of the ice waterfalls with your whole body
Guided by experts intimately familiar with the natural beauty of Oirase Stream, discover ice waterfalls whose appearance and brilliance shift with light and time of day. Experience the unique winter splendour of Oirase: the sheer scale of the ice formations, visible only in daylight, and the striking natural contrasts woven by trees and rock faces.
An activity that stimulates intellectual curiosity: ‘Icefall Discovery’
A stream concierge, who holds a deep love for the nature of Oirase Stream, introduces the charm of the “frozen waterfalls” – a quintessential winter spectacle of Oirase Stream – and ways to enjoy the season. This richly rewarding content explains not only their beauty but also the wonder and fascination of how they form, accompanied by stunning photographs.
A unique bathing experience where you can admire the ice waterfall to your heart's content ‘Ice Waterfall Bath’
The signature feature of the indoor open-air bath is the sweeping view of ice waterfalls encircling the bathing area. This spectacular bath recreates ice cascades on a wall approximately 3.5 metres high and 16 metres wide. Overlooking the Oirase Stream, it allows guests to enjoy a snow-viewing bath while gazing upon the frozen landscape.
Oirase Keiryu Hotel by Hoshino Resorts
The open-air bath overlooking the mountain stream and the lobby featuring Taro Okamoto’s monumental fireplace create a soothing atmosphere. Guided by the concept of “mountain stream slow living”, we craft stays that enrich the spirit.
>Oirase Keiryu Hotel by Hoshino Resorts Official Website