Hello,I think if you go to northen part of Japan, you will have snow.So i recomend the area as below,For your informqtion, I introduce the web site of turist gude or the place where I like.Before going, please check there is snow or not and you can enter or not.Depends on the year, the weather ch...
If you travel around eastern part of Japan, I recommend you Tama area. Upper stream of Tama river. The scenery also great!If you travel around the central part of Japan, Gifu is the best place. Nagara river is one of the greatest rivers for fishing.