I will be in Amsterdam for a few days and I plan on making a day trip to Arnhem and Oosterbeek to take in some of the WW II sites. I found on the Netherlands' Railway site that it is an easy train ride from Amsterdam Central; about $37.00 round trip. I have two questions:
Once there I will need to use the local bus to get to and from the different sites, what would be the best way to purchase my bus tickets? Would it be better to pay for each individual trip (at the minimum 2 round trips) or buy a OV Chikaart or something similar? I was not planning on using the public transportation in Amsterdam for everything I'll want to see is within walking distance of my hotel.
If I decide to leave the larger crowds of Amsterdam and visit Arnhem on King's Day; how far out should I purchase my train tickets? I don't mind being committed to a particular scheduled train going to Arnhem; but, I not sure what time I'd be returning to Amsterdam.