Interlaken - Milan by train
Hi, I plan to travel from interlaken - milan by train on August 25.this will be my first time and I need some help on how to do this. What website to book? right now im looking at the sbb.ch website and raileurope, i was advised not to use the raileurope website but when comparing the prices from sbb.ch raileurope options are a bit more cheaper, is there any other website that i should check? Should I book in advance? or can I just show up at the train station.
and also I'll be staying in Interlaken for 3 days, will it be beneficial for me to get a swiss pass or a swiss flexipass?