I need to purchase 3 tickets from Warnemunde to Berlin in June. What are the least expensive tickets for a group of 3 people? Can I purchase them on date of travel or ahead? Do I need to use a ticket machine?
Related question: If a purchase a Quer-durchs-land ticket, can I use it multiple times a day? For example, Warnemunde to Dresden and also on the same ticket and same day, Dresden to Berlin?
Thank for any assistance.