Add Yahoo as a preferred source to see more of our stories on Google. Public bath Siebold no Yu against colorful sakura blossom of cherry tree at Ureshino onsen park. - blanscape/iStockphoto/Getty ...

My guide reveals the risque reason many people flock to this hot-spring hotspot. Then we get naked together.

Japanese hot springs—better known as onsens—are prized for their zen experience, with travelers coming from around the world to lounge in natural pools and bliss out. The country is home to 27,000 ...