I am looking for the cheapest way to travel between cologne and Maastricht.
There are so many options/special tickets, that I allways feel there is probably something I am missing. It's an art to master all these options.
In the Euregio there is the Euregio Ticket that allows unlimited travel in the eueregio region for one day. In Germany there is the SchönerTagTicket Nordrhein-Westfalen. If you buy tickets in advance in german train you also get a discount...
Does any one know what's the best option? am I forgettting some obscure option that makes life cheaper and easier?
What's the way of travelling the cheapest, by public transport, between Cologne and Maastricht?