I have stayed here several times before, and the last time I visited was slightly below expectations. I am glad to say this time was a return to the standard!
The Chateau des Tourelles is a deeply impressive hotel design. You enter through large wrought iron gates onto prestigious grounds, and the hotel is built essentially as a system of wings coming off the original chateau, which stands impressively on the edge of the rugged coast. Arrival always feels like a James Bond film. But, I was a little disappointed to not feel very warmly greeted by the reception staff on this occasion. The first couple times I stayed, that part of service was impeccable. The concierge team were nice however.
Room
For a change, I went for the entry-level room, which was in the chateau itself. The room wasn't too small at all, which I thought it would be. Rooms have a fridge that rarely works, and free water (which was not resupplied). Instead of a robe, you get the signature kimono, which I always think is an excellent gimmick, however the one I had was clearly past its best. The room still felt luxurious, despite being entry-level, but it could do with another chair. I actually would stay in this room again, but my preference will always be to upgrade to the Comfort room with a balcony.
Facilities
As always, facilities are great provided it is not busy. The spa has a swimming pool with an array of jets, a jacuzzi section, a plunge pool with more jets and waterfalls, a communal steam room, and separate men and women changing rooms with showers, lockers and tiny saunas. The outdoor pool is closed for most of the year, but still appears full and fairly clean, so does not become an eyesore. There are ample treatment rooms, a non-gym, and a couple of massaging chairs free to use. The bar is very nice with great ottomans, and the restaurant is supposed to be good (though is expensive). The terrace overlooking the sea is a pleasant and interestingly furnished spot to sit and relax.
Location
From right outside the chateau, you will find wonderful coastal walks to St Sebastian, or in the other direction to Pornichet centre. Horse racing is nearby. It is a much longer walk to La Baule, however this is very pleasant and flat, and there are shops and restaurants and bars within a 5 minute walk of the hotel. Pornichet is a coach ride from Nantes, but really it is best to drive here. If dramatic surroundings and aesthetic views are what you look for on a run, this area will not disappoint! My favourite route is along the coast as far as you can go, on the beach for part of it, then back via the residential road inland with wonderful architecture and trees.
Overall, the aesthetics of the hotel and its spa feel indulgent and relaxing. An old fella once said to me in the jacuzzi, that 2 weeks in the Tourelles spa will undo everything that life has done to you during the year, and keep you young! And I actually believe it. It is one of the most relaxing places I have ever been in my life. But, go out of season so the spa isn't too busy. Additionally, I was surprised and disappointed by the standard nature of reception service, lack of resupply of water, and the outdoor heated pool not being in service despite it almost being July. But, would still strongly recommend. I'll go back to the balcony room next time, too!