Built in the factory of concrete specialist Ueda Shokai, established in 1925, the CUBERU SAUNA combines the sleek look of concrete with a design that blends into any landscape and boasts excellent heat retention once warmed. By combining wood and high‑performance insulation, it achieves outstanding thermal efficiency and airtightness, allowing the cabin to maintain a high temperature for a truly comfortable sauna. The sauna room seats up to eight people and is equipped with our original aromatic water for self‑löyly. Step outside to find a cold plunge bath repurposed from a dairy milk tank and a hot “Goemon” bath made from a sake barrel. The open‑air relaxation area features art‑adorned pine trees and a campfire.

“Rekka” means “container” in Finnish, and—as the name suggests—is a fully DIY sauna converted from a truck container.
The cabin features an enormous DIY wood stove whose heat rises like a raging fire—keep adding logs and it can exceed 120 °C, so please take care. The room seats up to eight people, and the cold plunge is equally large. As with CUBERU, our original aromatic water is provided for self‑löyly.

* When rented privately, two bundles of firewood are free of charge. Additional bundles are available at ¥3,000 per crate.

The dedicated terrace in front of your villa is the perfect space for a luxurious sauna experience. Relax in the sauna, cool off in the cold plunge, breathe in nature during an open‑air rest, enjoy delicious BBQ, and chill with a hookah—experience it all. The sauna’s stove is a HARVIA wood stove; stove‑sized logs are provided, and extra logs are available for ¥2,500 per basket if needed.