Took a day trip from Hirafu to ski Rusutsu.
Need to book at Welcome center, ¥8600 include bus fare and 1 day ski pass. Good value, considering an All Mountain Pass at Hirafu is about the same.
There are 2 ski areas in Rusutsu: East Mountain and West Mountain. Only had time to ski the East- long runs, plenty of nice trees area for the immediate skiers. Much quieter than Hirafu.