Dear Sir,
I thought of purchase the japan rail pass for 5 days. I will be at Karuizawa for 2 nights and 2 night in tokyo. Should i purchase this pass.
Travel down from Narita airport to Karuizawa and karizawa to shinagawa.
1) can you advise whether i should buy the japan rail pass
2) can it be use for express train from Narita Airport
3) how can i travel from narita airport to Karuizawa
Thank you in advance for your advise