We really enjoyed an excellent couple of nights in the Clos des Sources.
Arriving by car, we were pleased to find plenty of parking space. The welcome at the reception was charming (E, F, D, Swiss German and perhaps others) and everything was clearly explained (and printed on an explanatory sheet). Not far from the reception is a lift going to all floors. The décor is modern but tasteful (no sign of the kitsch usually loved in Alsace). After a short walk round the village, we went to try out the spa - all included in the price. Everything clean and simple to use. Whilst we were there, the pool and spa were never over-crowded.
The evenings we ate at the restaurant, and we were pleased with the fresh (and tasty) local products used in the cuisine (and of course, loads of choices of Alsatian wines). Our entrées and main courses were excellent (the desserts were good but for our taste nothing special). Also, the breakfasts were very fresh with home-made jams and juices. The service was particularly friendly, helpful and attentive.
Directly from the hotel there are lots of walks / hikes all of which are well marked. The hotel provides a useful guide for walks in and around Thannenkirch. Or you can take the car and visit the numerous nearby quaint typical Alsatian wine villages. We also visited the beautifully restored Haut Koenigsbourg Castle. Being so close to the castle had the big advantage that we could be among the first visitors, thus avoiding the later rush.
Our room was comfortable and large enough and quiet - with the windows shut we heard virtually no noise. The main road is a popular motorcycle route, so in summer it's probably best to ask for a room away from the main road to avoid the noise and smell or motorcycles.
We had a couple of trivial issues with the room. There were virtually no hooks in the bathroom to hang clothes and towels and the cupboard space in the room was limited. The door was extremely stiff and we had to push hard together to get it open. Also, the toilet seat was not properly fixed to the toilet. We mentioned the toilet seat and the door at the reception, but nothing was done during our stay. However, these were really minor issues which in no way impaired our overall enjoyment in our stay.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC