We took a vacation to Nozawa Onsen - an area of Japan near Nagano that is known for skiing and not summer fun.  We had a great time.  On the same slopes that we ski, we down hill mountain biked… take teh gondola up, and mountbike ride down.  We also slept in late, walked around quite a bit and had a good time. We also visited several different hot springs as well.  The higher altitude made for very nice summer weather too. The weather was warm, but not 35C(95F) either..