Cologne, North Rhine-Westphalia to Karlsruhe, Baden-Wuerttemberg from €9.8: 5 ways by bus, train, flight or car

• Onboard services on the trains from Cologne to Karlsruhe typically include catering amenities provided by the operators such as Deutsche Bahn. You can expect a selection of snacks, hot and cold beverages, and in some cases, full meals available for purchase. It’s advisable to check the specific train schedule to see if your service includes a dining car, especially if you're traveling during mealtime.

• The main operators for this route are Deutsche Bahn and FlixTrain. Deutsche Bahn offers a range of seating options including First Class, Business Class, and Economy Class. First Class seats provide greater space, complimentary snacks and beverages, and quieter environments. Economy Class seats are more budget-friendly and still quite comfortable for the journey. For more details, check their official websites: Deutsche Bahn - bahn.com, FlixTrain - flixtrain.com

• Upon arrival at Karlsruhe’s main train station (Karlsruhe Hauptbahnhof), you will find facilities for luggage storage located within the station, making it convenient if you wish to explore the city without your bags. The station also has restrooms available, and while showers are not typically offered, nearby hotels may provide access for a fee. To get to the city center quickly, take tram line S1, S11, or bus number 10 which will transport you right into the heart of Karlsruhe in about 10-20 minutes.