Direct express train (easiest)
From Shinjuku Station, take the Azusa 5 limited express. It leaves daily at 8:00am from platform 9.
It goes direct to Hakuba Station, arriving at 11:42am.
Time: 3 hours 42 minutes
Cost: ¥8,270 for adults (12+), ¥4,130 for children aged 6–11
Book: JR East online reservations or a JR East Travel Service Center.