My legs still hurts from the run, so im not missing ne more opportuniy to do one of my favorite things in japan : LETS GO TO ONSEN!!!!
Its SPA like hot springs water source, often with indoor and outdoor baths, jacuzzi, sauna, massage, healthy food,…everything to keep you a full afternoon if not more.
My selection of today will be toshimaen onsen:
http://www.toshimaen.co.jp/niwa-yu/guide/index.html
the good thing with this one also is if you are with your girlfriend, there is a mixt part in swimming suit 🙂