Winter rotenburo

Would appreciate if anyone could advise on rotenburo. I'm making a trip there in late december and I'd like to enjoy an outdoor bath in the snow. Anyone know the best time and place to experience rotenburo in the snow ? I will be staying in Tokyo.

I imagine Nyuto Onsen, especially Tsurunoyu, to be very nice in the snow:
http://www.japan-guide.com/e/e3650.html

I enjoyed the outdoor bath of the Prince Hotel in Manza Onsen a lot. It is much closer to Tokyo than Nyuto Onsen:
http://www.princehotels.co.jp/manza/onsen/

I visited here late April in 2008. The hot spring was spouting vigorously from a hole at the bottom of the rotenburo. It wasn't so hot, 37-38 degrees Celsius, about 100 degrees Fahrenheit, perfect for long-time soaking. I spent more than an hour in early evening and the following morning each time.

You can enjoy view of blue-green Tadami River（只見川）, cherry blossoms, and a local train passing far away while soaking. Surprisingly, the hot spring water tastes a little bit sweet (I know it's not for drinking!)

A family run inn, Tatsumi-so（たつみ荘） owns this rotenburo. They allow day visitors' soaking for free so far. First you have to ask permission. No wonder staying (paying) guests have priority for soaking. It's a mixed bath, swim suites bathing is prohibited, and there is no changing room. I recommend you to stay overnight at the Tatsumi-so and soak early in the morning or in the night. Hundreds of people visit here on weekends and national holidays.

Dear Uji
Thank you for the helpful links. The baths listed there are beautiful. I hope to see snow in December although I heard snow in Tokyo is quite rare?


Dear ereperez
Thank you for your suggestion, sounds like you had a great trip, I have never tried drinking the bath water :D I'll try it when i'm there to see if it's sweet then hehe.