Why bring the dog
The Mullerthal Trail runs 112 km through sandstone gorges, moss forests and cliff staircases — genuinely one of Europe\'s best dog walks. Restaurants in Echternach and Berdorf are almost all dog-tolerant, and trains and buses across the country accept dogs for free with a muzzle. The main friction is hotels: fees vary wildly and some "pet-friendly" listings mean one designated smoking room next to the boiler.
The picks worth booking
In Echternach: Hotel Bel Air (€121, no fee, big garden), Hotel Le Postillon (€82, €9 fee), and Youth Hostel Echternach (€48, dogs in private rooms only). In Berdorf, right on the trail: Hotel Kinnen (€104, no fee, hikers\' hotel by design) and Hotel Perekop (€113). In Beaufort near the castle: Auberge Rustique (€78, €13 fee). In Luxembourg City the reliable options are Sofitel Le Grand Ducal (€225, no fee, small dogs), Novotel Kirchberg (€121, €13) and Hotel Parc Belair (€147, €17).
What to actually check
Ask three things before booking: is the fee per stay or per night, is there a size limit (many cap at 15 kg), and can the dog be left in the room. That last one matters for the two hours you want to spend inside Vianden Castle without a Labrador.
Questions, answered
Can dogs go on the Mullerthal Trail?
Yes, off-leash in most sections but on-leash in the popular gorge stretches like Wolfsschlucht. Water bowls at most trailhead cafes.
Are dogs allowed in Vianden Castle?
Small dogs on leash, yes. Larger dogs — no, but the castle grounds and chairlift are fine.
Doing good is the business: every booking through Stay Luxembourg funds one verified tonne of carbon removal — same room, same price, no markup.
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