Hoshino Resorts KAI Poroto became the 19th property managed by Hoshino Resorts under the hot spring inn brand, KAI. It opened its doors on January 14, 2022, in Shiraoi, Hokkaido. It marks the first KAI establishment in Hokkaido, with a unique concept centered around a cone-shaped bathhouse nestled by Lake Poroto. The key feature is its design, seamlessly incorporating the lake into the surroundings. All guest rooms offer serene views of the ever-changing seasons reflected on Lake Poroto.
The KAI Signature Rooms, known as “Shikaku-no-ma” in Japanese, boast a design inspired by the traditional Ainu houses known as “cise.” Each room faces Lake Poroto and features tables reminiscent of the square fireplaces found in Ainu homes. Wooden oars and Ainu patterns adorn the interiors, creating a harmonious blend with the surrounding nature, including the white birch and maple trees. This design aims to immerse guests in the local culture and natural beauty.
The hot spring at KAI Poroto is a moor spring, a rarity globally. Moor springs, distinguished by their dark brown color, contain organic minerals derived from plants, including humic and fulvic acids known for their skin-rejuvenating properties. The alkaline spring water enhances skin metabolism, leaving it smooth and revitalized after bathing.
KAI Poroto features two hot spring facilities: “Sankaku-no-yu” and “Maru-no-yu.” Sankaku-no-yu, located within the cone-shaped bathhouse, offers both indoor and outdoor baths. The architectural style is inspired by Ainu culture, featuring a tripod structure called “ketunni.” Maru-no-yu, on the other hand, provides a cave-like ambiance, evoking the sensation of spring water flowing from the earth. Both facilities offer unique experiences amidst the changing scenery of Lake Poroto.
Guests can indulge in Kaiseki course meals served in semi-private dining rooms, showcasing Hokkaido’s finest ingredients. The culinary journey begins with delicacies like pressed potatoes topped with salmon roe and sea urchin. Main courses include a crab and scallop hot pot, highlighting Hokkaido’s specialty seafood.
As part of the KAI Cultural Discovery program, guests can participate in sachet amulet making using the Ikema plant. The plant, known for its earthy scent, holds significance in Ainu culture for its believed ability to ward off negativity. This workshop offers guests a glimpse into Ainu beliefs and traditions, allowing them to craft their sachet amulets infused with Ikema and other herbs, wrapped in traditional Ainu-patterned bags.