For unlimited travel for a whole day within a certain region one of Deutsche Bahn's "Länder-Tickets" is the best choice.

Travel can be on any weekday, or on Saturday or Sunday, within one of the German states. The ticket can be used on all local trains (RegionalExpress, RegionalBahn, S-Bahn) and several other transport systems.

The package price starts from £19 for up to 5 persons travelling together or for parents (or one parent) travelling with any number of their children under 15.

Click here to find more information about the "Länder-Tickets".