Europe was practically built for the long weekend. Compact capitals, dense old towns, frequent trains, walkable centres, a different language and pastry every few hundred kilometres. The trouble is that the easiest way to get around — a budget flight and a chain hotel with the windows sealed shut — quietly racks up a carbon bill that lingers long after the souvenirs fade. The good news: a lower-carbon city break isn't about hair-shirt sacrifice or spreadsheets. It's about a handful of better defaults. Pick the right city, pick the right way to get there, sleep somewhere that takes its own footprint seriously, and let the place itself do the heavy lifting. Here's how to plan one that still feels like a holiday.
Start with the map, not the deal
Most carbon damage on a city break is done before you've even packed. It's locked in the moment you book the flight. So flip the usual order: instead of hunting for a cheap fare and reverse-engineering a trip around it, start by asking which interesting cities you can reach overland in a sensible amount of time from where you live.
From London, that opens up Paris, Brussels, Amsterdam, Lille, Rotterdam and — with a single change — Cologne, Lyon, Bordeaux. From Paris, the high-speed network unfurls across France, into Belgium, the Netherlands, western Germany, Switzerland, northern Italy and Barcelona. From Berlin or Vienna, central Europe is yours. The Nordic capitals are stitched together by ferries and sleeper trains. Madrid and Lisbon now run a comfortable overnight option in their own right.
The point is not that trains are always faster than planes — door to door, they often are for journeys under about five hours, but not always. The point is that rail journeys are typically a small fraction of the carbon of the equivalent flight, and they tend to deliver you straight into the centre of town, with no airport transfer, no security queue, and no 6am alarm.
Be honest about how you're getting there
If a flight is genuinely the only realistic option — say you're heading from Dublin to Athens, or Helsinki to Seville — there are still better and worse ways to do it.
- Fly direct. Take-off and landing are the most fuel-intensive parts of any flight, so a single direct hop almost always beats a connection.
- Travel light. Less weight in the hold means less fuel burned. It also means you can hop straight onto public transport at the other end.
- Stay longer. Two long weekends a year typically costs more carbon than one full week. If you're going to fly, get your money's worth.
- Skip the rental car. European cities are designed for feet, trams and the occasional metro ticket. A car is usually a liability in the centre anyway.
And if you're driving from home, the same logic applies in reverse: a fuller car with three or four passengers per vehicle is a perfectly respectable way to travel, especially across regions where rail is patchy.
Pick a city that's already doing the work
Some European cities make a low-carbon trip almost effortless because they've engineered their daily life around it. You don't have to plan a "green" itinerary — you just have to show up and use what's there.
Look for the tells: dense, mixed-use centres where shops, cafés and museums sit on top of each other; a metro, tram or bus network that runs late and goes everywhere; protected cycle lanes used by ordinary people in ordinary clothes, not just lycra-clad commuters; pedestrianised old towns; clean, well-used public spaces; bike-share or e-scooter schemes that actually work.
Copenhagen, Amsterdam, Utrecht, Ghent, Freiburg, Ljubljana, Vienna, Helsinki, Zurich, Pontevedra in Spain — each in its own way has made walking, cycling and public transport the default. You'll cover more ground, see more of the place, and your daily emissions will be a rounding error.
Sleep somewhere that's actually trying
"Eco" is one of the most over-used words in hospitality, so it pays to read past the marketing. A credible green city hotel tends to share a few features:
- It's in a building that already exists. A thoughtful retrofit of an old townhouse or warehouse beats a flashy new build, almost regardless of what's on the eco brochure.
- It runs on something serious. A specific renewable electricity tariff, on-site solar, heat pumps, district heating from a verified low-carbon source — concrete answers, not "we care about the planet."
- It's measured by someone independent. Recognised certifications include Green Key, EU Ecolabel, BREEAM, LEED, EarthCheck and B Corp. None is perfect, but each requires audited evidence.
- It treats food like it matters. Local, seasonal, vegetable-forward menus and a real plan for food waste tell you more than a "save the towels" card in the bathroom.
- It's near a station. A hotel a ten-minute walk from the main rail terminus is doing more for your footprint than one with a "carbon-neutral airport shuttle."
If a hotel can't tell you specifically what it's doing, assume it isn't. The good ones are usually keen to talk.
Eat like a local, not like a tourist
Food is one of the easiest carbon wins on a trip and, conveniently, it's also where the fun lives. The principle is simple: the closer the food was grown, and the less it relied on a feedlot or a heated greenhouse, the lighter its footprint.
That means leaning into the regional staples — Lisbon's grilled fish and bean stews, Bologna's vegetable-led antipasti, a Viennese coffee house breakfast, the bakeries of Copenhagen, the tapas bars of San Sebastián, a Berlin Turkish café at 2am. Tip-offs: a daily-changing menu (it's tracking what's at the market), a short wine list (probably regional), and a queue of locals.
Two practical habits help. First, treat lunch as your main meal — it's usually cheaper, lighter and better-sourced. Second, carry a refillable bottle. Most European cities have excellent tap water and increasingly common public fountains; Rome and Paris are particularly generous on this.
Use the city the way the city wants to be used
The single biggest swing on a city break, after how you arrived, is how you move around once you're there. Taxis and ride-hails add up fast, both in money and in carbon. The alternative is genuinely better, not just more virtuous.
- Buy the multi-day transit pass on day one. It removes the friction of deciding whether each individual journey is "worth" the metro fare.
- Try a bike-share for an afternoon. A couple of hours on two wheels through Amsterdam, Seville, Copenhagen or Strasbourg will reorganise how you understand the city.
- Walk the edges between neighbourhoods. The interesting bits of any European city are almost always in the seams — the bit between the tourist quarter and the residential one.
- Take the night train, where one exists. Vienna–Rome, Paris–Berlin, Stockholm–Hamburg and the resurgent European sleeper network turn the journey into part of the holiday and save a hotel night while they're at it.
Shop like you'll have to carry it home
Souvenirs are where good intentions go to die: airport tat, plastic miniatures, a fridge magnet you'll resent within a year. The lower-carbon move is also the more memorable one — buy fewer things, from people who actually made them.
That looks like a Saturday morning at a proper food market and a wedge of cheese for the train home. A bar of soap from a small Marseille soap-maker. A second-hand book in English from a Berlin Flohmarkt. A ceramic bowl from a Lisbon studio. A wool blanket from a Welsh mill if you've taken the long way round. These things have stories. They also tend to be made closer to where you bought them, with less packaging and a far longer life than the airport version.
Account for what you can't avoid
Even a carefully planned trip has a footprint. There's no version of "I went to Lisbon for the weekend" that emits zero. The honest move is to acknowledge that and deal with it, rather than greenwash it away.
Practically, that means knowing roughly what your trip emitted (a quick flight or rail calculator gets you close), shrinking what you can on the next one, and supporting verified carbon removal or reduction projects for the residue — ideally ones with transparent registries you can actually look up. Beware of vague "we offset everything" claims with no project named and no tonnage stated. The credible ones show their work.
Where IMPT fits in
This is more or less the trip we built IMPT around. Every hotel booked through our platform — out of more than 1.7 million across 195 countries — comes with one tonne of CO₂ offset on-chain, paid for by IMPT from its own commission, not added to your bill. The IMPT Shop runs the same idea across 20,000+ partner brands, so the souvenirs and kit you'd buy anyway can quietly chip away at your footprint too. The IMPT Card and IMPT Token tie it together for the people who like their climate impact tracked rather than guessed at. Plan the trip well, and the platform handles the bit you couldn't quite plan around.