Dear Daniel-san,
Good day to you!
Can you please confirm my understand that the JR East Pass (Nagano & Niigata areas) can be used to travel on the JR/express/local trains for all of the following trips?
1. Tokyo (Ueno) to Karuizawa
2. Karuizawa to Nagano
3. Nagano back to Tokyo (Ueno)
4. Tokyo (Ueno) to Kawagoe & back to Tokyo [day trip]
5. Tokyo (Ueno) to Nikko & back to Tokyo [day trip]
Thank you so much, arigato gozaimasu!