Zao Onsen Dai Rotenburo (Zao Onsen Large Open-air bath)

Zao Hot spring, Japan’s oldest water with a history of over 1900 years since establishment. It is well-known to a Japan’s leading water with strong acid called “the water for the beauty” whitening skin by dropping oil without rubbing, this spa became a drop-in popular to which people visit and enjoy bathing easily.

Going through a tasteful gate and go steps down, an open-air spa built with accumulated natural stones along a mountain stream appears. A bathtub is so huge that 200 people use as the same time while enjoying the sound of a river and birds’ singing filled with an open atmosphere. A bathing is relaxingly enjoyed with viewing fresh-greenery in Summer and foliage in Autumn. There are two open-air bathtubs in each upper and lower floor with which favorite water temperatures are available.

A strong acid water with the pride is outstandingly effective while this strong component of acid is a lot cautious. A strong pain is caused when the water is dropping into the eyes, and drinking water is danger, of course. A black discolored erosion into the metals caused by strong acid, with which absolutely taking off a watch or accessories before bathing. It is important to wipe the body carefully after bathing to prevent from harmed clothing. Take a fresh air after bathing at an attached rest space. Enjoy a cold juice, beer, and a speciality local fool, Tama-konnyaku.