Izumi Tenku no Yu Ariake Garden

Onsen complex near Odaiba, with natural water from 1500 m underground. Baths: - Rotenburo, two large ones at 41°C, one was not working. Brown water, interesting, with a smell of iron. - Lying-down bath, 2-3 cm deep, outside. - Indoor jacuzzi. - Indoor massage bath. - Indoor aromatic bath, changed once a week. - Indoor cold bath at 15°C, for after the sauna. Saunas: - Dry, hot, with a TV. - Steam sauna with salt, pleasant smell. - Ganban'yoku for an extra fee. Overall, the baths look surprisingly worn, worse than in the photos on the website. The rotenburo is technically a rotenburo, of course, but there are no views at all, and even the sky is mostly blocked and there is little airflow. For guests of Villa Fontaine Grand Tokyo Ariake hotel there is a discount, and some plans include it. With one ticket you can enter as many times as you want, and there is direct access from the hotel. Good relaxation area, there are tables with power outlets for work, reclining seats, books. There is also a restaurant, with a varied menu. Massage area and a bar/cafe inside. A rare feature is that you can order private baths/saunas at the hotel, allowed for unmarried people, and day-use guests who are not staying overnight are also allowed. For its location, it's okay, but I wouldn't go out of my way for it. The nearby Manyo Club looks better.