6 Days from Cologne: Germany Day Trips

Six days adds a full Romantic Rhine day to the Cologne-Bonn-Dusseldorf-Brühl-Aachen pattern: settle in on day 1, Bonn on day 2, Düsseldorf on day 3, Brühl on day 4, Aachen on day 5, then a Rhine castle cruise segment on day 6. Shorter trip? Drop back to 4 or 5 days . Want the Ruhr too? Step up to the full 7-day version . Rather stay entirely in the city? Our 6-day Cologne itinerary never leaves town.

Book these before you go

Day Focus Distance / Train Time from Cologne
Day 1 Cologne base: Dom, Altstadt, Rhine promenade In Cologne
Day 2 Bonn day trip: Beethoven-Haus, old capital 20-26 min by RE5 regional train
Day 3 Düsseldorf day trip: Altbier, MedienHafen 20-25 min by ICE/RE, every 15-20 min
Day 4 Brühl half day: Augustusburg Palace 15-20 min by S-Bahn/regional train
Day 5 Aachen day trip: Charlemagne’s cathedral 33-36 min by ICE, or 60-70 min by regional RE1/RE9
Day 6 Romantic Rhine: KD castle cruise segment ~1h35 with a change to Rüdesheim, EUR20-34 one way

Day 1: Lock Down Your Cologne Base

Arrive at Köln Hauptbahnhof, the Dom’s west facade waiting right outside the north exit since the cathedral sits directly beside the station. Book a hotel near the Hbf or in the Altstadt so every gateway in this itinerary starts a short walk or one train ride away. Spend the afternoon on the Hohenzollern Bridge, then work through the Altstadt and Rhine promenade. Dinner goes at a proper Brauhaus (Früh, Paffgen, Gaffel, and Sion) with a round of Kölsch, the tiny 0.2 liter Stangen kept coming by the Kobes waiter until you cap your glass with the beermat. Our full Cologne guide covers the rest of the city in depth.

Day 2: Bonn, Beethoven, and the Old Capital

RE5 regional trains cover Köln Hauptbahnhof to Bonn Hauptbahnhof in 20 to 26 minutes, no ICE needed. Beethoven’s birthplace, the Beethoven-Haus museum , runs EUR10 adult, EUR6 reduced, free under 19, and the old West German government quarter and Museumsmeile sit a bus or tram ride from the station rather than a walkable extension of a compact old town. Treat Bonn as an easy half-day.

Day 3: Düsseldorf and the Altbier Rivalry

ICE and RE trains cover Köln Hauptbahnhof to Düsseldorf Hauptbahnhof in 20 to 25 minutes, fastest around 21, running every 15 to 20 minutes. Order Altbier, not Kölsch. Düsseldorf’s own Altstadt bills itself locally as the longest bar in the world, and the MedienHafen harbor redevelopment sits a 15 to 20 minute walk or tram ride from the station. Our full Dusseldorf guide covers the neighborhood breakdown.

Day 4: Brühl’s Baroque Palaces

Augustusburg and Falkenlust, a matched pair of UNESCO-listed Baroque palaces, sit just 15 to 20 minutes from Cologne by S-Bahn or regional train. Visits run guided-tour-only, folded into the ticket price, no reservation needed, check current hours on schlossbruehl.de . The palaces close Mondays and shut down entirely from December through February. Phantasialand next door deserves its own separate day.

Day 5: Aachen and Charlemagne’s UNESCO Cathedral

ICE trains cover Köln Hauptbahnhof to Aachen Hauptbahnhof in 33 to 36 minutes; the slower RE1/RE9 regional run takes 60 to 70 minutes but is covered by the Deutschland-Ticket. Aachen was Germany’s first UNESCO World Heritage Site, inscribed in 1978, and its cathedral still holds Charlemagne’s throne and shrine. Entry to the cathedral itself is free, but the throne room and imperial chapel run guided-tour-only, EUR7 adult, EUR5 reduced, and weekend slots do sell out, so book ahead on aachenerdom.de or through the bundled Cologne-to-Aachen train tour on GetYourGuide . Grab a bag of Aachener Printen before the train back.

Day 6: The Romantic Rhine, One Segment, Not the Whole Run

Here is the number that changes how this day works: the full KD cruise between Koblenz and Rüdesheim runs about 4 hours downstream and 6 or more upstream, and there is no direct train from Cologne to Rüdesheim either, only a roughly 1h35 regional connection with a change, fare somewhere around EUR20-34 one way. Attempting the entire castle-lined run plus both train legs in one day leaves almost no room for a late connection. The honest version: train out to Rüdesheim or Bingen, then ride a shorter scenic segment through the castle-dense Bacharach-to-St Goar stretch, book a Rhine Valley castles cruise from Rüdesheim on GetYourGuide rather than the full multi-hour Koblenz run, and train back from the far end. Check current sailing schedules on k-d.com before you commit to a departure, service thins out sharply outside April to October.

Should You Attempt the Full Koblenz-to-Rüdesheim Cruise in One Day From Cologne?

No, not from Cologne and back in a single day. The sailing alone runs 4 to 6-plus hours depending on direction, and adding the train time each way leaves you stranded well after dark if a single connection runs late. Take the shorter castle-stretch segment instead, or plan an overnight in Koblenz or Rüdesheim if you want the full run.

Is Six Days Enough for All Five Gateways?

Yes, with one gateway per day and a Rhine day that runs long by design. Bonn, Düsseldorf, and Brühl are half-day-friendly, Aachen fills a fuller day, and the Rhine day runs longest of all once you count the train legs on both ends. The 7-day version adds only the Ruhr on top of this same spine.

Practical Notes

Cologne runs on the euro, and cash still matters more than cards inside traditional Brauhaus taverns. Shops mostly close on Sundays under standard German trading law. Pack a rain layer regardless of season, and build slack into day 6 specifically, it is the one day on this itinerary where a missed connection actually costs you the whole evening.