Nozawa Onsen is a huge resort with more a dozen lifts, two gondolas, and some of the best terrain in Japan for all levels of skier and snowboarder. Beginners will appreciate plenty of wide open slopes and interesting trails whilst those with more experience will love the powder and amazing tree skiing.
There are plenty of restaurants up on the mountain, most where you can get a very hearty meal for around ¥1000. The resort offers childcare and ski lessons, based out of the Hikage Information centre.
http://naganogo.com/nozawa-onsen