San Valentino, Castelrotto, South Tyrol, Italy
Outdoor pool at 33°C in winter, facing the Sciliar near Castelrotto.
Why it made the list
The pool
An 11 by 4.5 metre outdoor pool sits on the lawn below the hotel, and from the water the view runs straight across the meadows to the Sciliar. It's heated all year: about 29°C in summer and 33°C in winter, when steam lifts off the surface and the garden around it is under snow. A cover keeps the heat in overnight.
Sun loungers and umbrellas are set out on the grass, towels are provided, and in summer a waiter brings drinks and snacks to the pool. Hours run 08:00 to 20:30 in summer and from 14:00 in winter, so plan a winter swim for after the slopes rather than before. The relaxation room beside it looks out at the pool through a wall of glass, and the hotel is adults only, from 16, which keeps the water quiet.
Checked against the property's official facilities on 23 Oct 2026. We re-check monthly.
Air: Autonome Provinz Bozen weather service, station Wolkenstein/Selva Gardena (1,594 m), mean daily max 2011-2025. Rounded. Ortisei (1,236 m) runs about 2°C warmer. Pool water: stated by the property.
The stay
Sonus Alpis is a family-run, adults-only hotel in San Valentino, on a sunny slope below the Alpe di Siusi and about 2 km from the centre of Castelrotto. The rooms, suites and apartments are named after local birds and fitted out in local woods, including spruce sound wood from the Alpe di Siusi, and run from a 20 m² double room to a 75 m² apartment for four, each with a balcony facing the mountains or the garden. There's no air conditioning, which some summer guests notice.
Music is the theme: a lounge bar with panoramic windows and a grand piano, a music library, and bird song in the suites. Breakfast is a buffet and the Saporis restaurant serves dinner. The wellness area has a Finnish sauna, an organic sauna, a steam bath and a panorama sauna in stone pine, plus a fitness room.
A free shuttle to the Ortisei and Alpe di Siusi cable cars, about 10 minutes' drive, stops in front of the hotel; in winter they link into 181 km of slopes. Parking and the garage are free, with EV charging, and dogs are accepted on request in selected rooms.
Good to know
Yes, all year, heated to about 33°C in winter. Winter hours start at 14:00 and summer hours at 08:00, closing at 20:30.
Yes: the minimum age is 16.
No. The outdoor pool is the only one, heated year-round, with the sauna area beside it.
On request, in selected rooms and for a fee. Dogs aren't allowed in the spa, the dining room or at the pool.
Nearby
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