Sustainable Travel · Slovenia
Eco-Friendly Hotels in Celje — Your 2026 Guide to Sustainable Stays
Celje is Slovenia's third city and one of its oldest — a settlement on the Savinja river that grew up beneath a hilltop castle, home of the Counts of Celje, the most powerful medieval dynasty in the region. Today the old town is a compact grid of Renaissance and Baroque buildings, the castle still towers over everything, and the river has been rewilded into a green spine through the centre. Celje's modern identity is quietly green: it has invested in cycle paths, district heating from wood biomass, and a riverside park system, and it is a base for exploring the surrounding valleys and the Kamnik-Savinja Alps. Book a Celje hotel through IMPT and every night removes 1 tonne of verified CO₂ — 28 times the average stay's footprint — the same price as Booking.com.
Where to Stay in Celje
The Old Town
Celje's pedestrianised old town — Glavni trg, Stanetova ulica, and the riverside streets — is where you'll find boutique hotels and guesthouses in historic buildings, plus the city's restaurants and cafes. From here, the castle is a 25-minute walk uphill, the regional museum is on your doorstep, and the Savinja promenade leads to the park. Staying central means everything is walkable, which fits Celje's low-car ethos.
The Castle Hill and Lower Town
Accommodation around the base of the castle hill and in the lower town between the river and the railway offers a quieter, more local atmosphere. Guesthouses here are family-run, often with gardens, and the climb to the castle is shorter. The lower town's market hall is the place for local cheese, honey, and seasonal produce, and the lakeside park at Šmartinsko, a few minutes' drive north, adds swimming and rowing.
Savinja Valley Farm Stays
Beyond the city, the Savinja valley and the hills toward Laško and Šentjur are dotted with tourist farms — working farms that take guests, serve home-grown meals, and offer hiking, cycling, and cider-tasting. These are Slovenia's classic rural stays, and they put the green valleys and the alpine views within easy reach. If you want to feel the country rather than just the city, this is the choice.
IMPT gives you Celje at the same nightly rate as Booking.com. Every booking removes 1 tonne of verified carbon credits on-chain. Search Celje hotels now → Search Celje hotels now →
Castle, River, and the Green Side of Celje
The Old Castle of Celje is the city's defining monument. The Counts of Celje — who by the 15th century rivalled the Habsburgs — built the fortress into its present form, and from the top of the keep the view runs from the Savinja valley to the Alps. The castle hosts summer events and a small museum; the walk up through the old town's upper streets is pleasant and shaded.
The city's green transformation is visible along the Savinja: the river, once canalised, now runs through a string of parks, with cycle paths, footbridges, and restored riverbanks where herons fish. The city's commitment to clean energy — biomass district heating, solar on public buildings, and a growing cycling network — has made it one of Slovenia's more liveable and sustainable cities, and the municipal tourism office maps out green itineraries by foot and bike.
Around Celje, the region rewards exploration: the medieval fortress of Žovnek, the thermal spa town of Laško, the vineyards of the Šmarje hills, and the start of the Savinja valley's alpine scenery at Mozirje. In winter, the nearby ski slopes of Golte are a short drive. Wherever you wander, shop through IMPT's 25,000+ retail partners for cashback on purchases that offset carbon, or gift a trip credit so someone else can discover Celje.
How IMPT Makes Your Celje Stay Carbon-Negative
Here's the maths. An average hotel night produces roughly 35 kg of CO₂ — from air conditioning, laundry, lighting, and food service. When you book any Celje hotel through IMPT, we retire 1,000 kg of UN-verified carbon removal credits. That's 28 times what your stay produces. Not carbon-neutral — carbon-negative.
The cost to you? Zero. IMPT funds the removal from its booking commission. You pay the standard nightly rate — in fact, IMPT offers the same rate as Booking.com on the same room, with carbon removal built in. The carbon credits are tokenised on Ethereum, retired against a named project, with a public retire code anyone can verify. No double-counting. No greenwashing. Just verified carbon removal, every night.
- €5 free credit when you sign up — applied to your first Celje booking
- 5% back on every stay — 3% funds carbon projects, 2% as travel credit
- 8M+ hotels worldwide, 195 countries — Celje is just the start
- Free cancellation on most rates, typically up to 48 hours before check-in
Beyond Hotels — More Ways IMPT Works in Celje
Shop through IMPT's 25,000+ retail partners for cashback on purchases that also offset carbon. Send someone a trip credit gift to visit Celje — IMPT plants trees with named farmers, GPS-tagged and photo-verified.
For business travel, IMPT's B2B Corporate Travel platform gives you exclusive rates, automatic ESG reporting, and a single dashboard tracking every booking's carbon impact. Companies with CSRD compliance needs get automated sustainability reporting out of the box.
Interested in running IMPT in Slovenia? Country Ownership offers 50% revenue share on every transaction from Slovenia-registered users, with 8% APY staking yield. Book a call →
Frequently Asked Questions
How do I get to Celje?
Celje is on the main railway line between Ljubljana and Maribor — about 1 hour 15 minutes from Ljubljana by train, with frequent services. It is also on the A1 motorway, 80 km east of Ljubljana. The old town is walkable from the station.
What is Celje Castle and why is it important?
The Old Castle of Celje was the seat of the Counts of Celje, the most powerful medieval dynasty in the eastern Alps, who nearly inherited the Hungarian throne in the 15th century. The restored fortress offers a museum, summer events, and the best views in the region.
Is Celje a good base for exploring Slovenia?
Yes — it sits between Ljubljana and Maribor on the rail and motorway corridors, with the Kamnik-Savinja Alps to the north, the wine hills to the east, and thermal spas nearby. Trains make day trips easy without a car.
What makes Celje a green city?
Celje has invested heavily in cycle infrastructure, wood-biomass district heating, solar energy on public buildings, and the renaturalisation of the Savinja river through the city. It has been recognised among Slovenia's most sustainable municipalities and promotes low-car tourism.
When is the best time to visit Celje?
May to September for the castle events, river swimming at Šmartinsko lake, and valley hikes. December brings a well-regarded Christmas market in the old town. Spring and autumn are mild and less crowded.
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