I will be arriving at the Amsterdam Schiphol airport in late May, and catching a train to Rotterdam, then returning a week later. It looks like the Fyra is a good option and that i can purchase tickets online for it.
Im confused, though, about the tickets. The Rotterdam Visitors guide says you need an NS ticket and the Fyra supplement - a paper ticket. Can anyone help me understand if i do actually need to purchase 2 tickets, and if i do, can i get both online?