I plan to go to Oslo for a day in mid September. And then do the Norway in a Nutshell end at Bergen.
Do I have to buy an advance ticket or just buy the ticket at Oslo station that morning?
Someone told me I have to make a reservation and paid extra for it beside the 1165 nok for one way Oslo to Bergen.
Please advice what is the best way to do!!!
Thanks in advance.

kalakim
Pro tip