Now that its winter again I wanted to go to a proper winter onsen with snow and everything. My friend and I found an amazing package deal for an overnight trip. It included 1 night, dinner, breakfast, and direct bus transport from and to Tokyo for ¥18,000.
万座温泉 (Manza Onsen) is in 群馬県 (Gunma Prefecture). Its pretty close to 草津温泉 (Kusatsu Onsen) that I visited earlier in the year. It was such a great trip. Such an easy way to get out of the city for 2 days. All I did was sit in relaxing hot spring water and watch the snow fall around me.