I was wondering what the breakdown of this is, We have done a little research and from what we can tell ICE usually costs a considerable amount more than 20 USD to get from Karlsruhe; we were just wondering if that 20$ was including the final leg of the journey to paris, or how this cost was calculated?
If it is just 20$ USD, is it possible to book through “eurail.com” or will we need to book it through OBB - in OBB we don’t see an option to pay for ICE.