Hi,
I am visiting Japan next month for 10 days and plan on buying the one-week JR Pass. However, I would like to be able to use the pass on days 4-10 of my trip. I understand that the voucher can be exchanged at the airport for the pass, but must this exchange take place on the same day that I arrive? And if not, will I have to return to the airport on day 4 to activate the pass, or can I activate the pass remotely?
Thanks for any help.

