Getting to NASPA by train
NASPA New Otani is just a few minutes from the West Exit of Echigo Yuzawa Station (an 80 minute journey from Tokyo Station on the Joetsu Shinkansen). NASPA shuttle bus information details can be found here.
Main Train Connections
Getting to Echigo Yuzawa Station
From Tokyo (about 80 minutes)
Tokyo Station > Joetsu Shinkansen > Echigo Yuzawa Station
From Osaka (about 3 hours 50 minutes)
Shin Osaka Station > Tokaido Shinkansen > Tokyo Station > Joetsu Shinkansen > Echigo Yuzawa Station
From Kanazawa (about 3 hours 56 minutes)
Kanazawa Station > Hokuriku Shinkansen > Itoigawa Station > Nihonkaihisui line > Naoetsu Station > Hokuhoku line > Echigo Yuzawa Station
From Kanazawa (about 3 hours 23 minutes)
Kanazawa Station > Hokuriku Shinkansen > Omiya Station > Joetsu Shinkansen > Echigo Yuzawa Station
From Sendai (about 3 hours 15 minutes)
Sendai Station > Tohoku Shinkansen > Omiya Station > Joetsu Shinkansen > Echigo Yuzawa Station
Details of the hotel shuttle bus from Echigo Yuzawa Station can be found here
For exact departure and arrival times, please check the Hyperdia website
A limousine bus is also available from Haneda and Narita Airport to Tokyo Station. Details here