Hotel with a heated pool in the Douro Valley

The pool. Heated outdoor rooftop pool, long and narrow, glass-sided over the valley, with bar. Spa with sauna, hammam and hot and cold baths.

Mr & Mrs Smith describes a heated rooftop pool. One guest confirms it's heated; others praise the river view from the pool.

Guide's tip. The pool is described as seasonal: get it confirmed that it will be open and heated on your dates.

The pool. Outdoor infinity pool and indoor lap pool at the spa, facing the valley, with sauna and hammam.

Travellers find the spa and pool area superb and mention the indoor pool. I haven't yet found guest reviews that mention the water temperature.

Guide's tip. Ask about the water temperature and the indoor pool's opening hours before booking.

The pool. Indoor pool at the spa and outdoor pool open from May to September.

Travellers praise the indoor pool and advise bringing a swim cap, which is compulsory. I haven't yet found guest reviews that mention the water temperature.

Guide's tip. Swim caps are compulsory in the indoor pool.

The pool. Indoor pool with warm water, outdoor pools and a paddling pool.

Two travellers mention a heated indoor pool at a pleasant temperature. Another found the air in the pool area stuffy; the outdoor pools may be closed out of season.

Guide's tip. Out of season, only the indoor pool is open.

The pool. Indoor pool and hot tub.

The hot tub. Hot tub on site.

A few guests regret the lack of a sauna and of jets in the indoor pool, and mention noisy children. Nobody mentions the water temperature.

Guide's tip. A family hotel: for a quiet swim, avoid late afternoon.

The pool. Indoor pool at the spa, with hammam and sauna; seasonal outdoor pool and children's pool.

Reviews are mixed: one traveller praises the indoor pool and spa, others found the outdoor area unfinished or closed and didn't like the compulsory swim cap. I haven't yet found guest reviews that mention the water temperature.

Guide's tip. Bring a swim cap for the indoor pool.

The pool. Indoor pool with sauna, and a small rooftop pool with a bar.

One traveller found the indoor pool a real plus in winter. I haven't yet found guest reviews that mention the water temperature.

Guide's tip. Ask about the water temperature and the indoor pool's opening hours before booking.

The pool. Heated indoor pool with hydrotherapy jets in the spa atrium, a cold plunge pool and jacuzzi, plus an outdoor infinity pool.

The hot tub. Jacuzzi in the spa.

A blogger who stayed there describes the spa's heated indoor pool, under a light-filled atrium. Another guest, who visited in November, also mentions the jacuzzi and the cold plunge pool.

Guide's tip. In winter, it's the spa pool you'll use: the outdoor pool isn't described as heated.

The pool. Indoor pool, in addition to an outdoor infinity pool.

According to Kayak's review summary, the indoor pool is open day and night. No reviews mention the water temperature.

Guide's tip. The hotel is at the mouth of the valley, far from the quintas of the upper Douro: you'll need a car for winery visits.

The pool. Indoor pool and outdoor pool.

According to Kayak's summary, some guests found the inside of the spa too chilly. No reviews mention the water temperature.

Guide's tip. Ask reception about the indoor pool's temperature if you're coming in winter.

The pool. Indoor pool, hot tub and seasonal outdoor pool.

The hot tub. Hot tub.

Travellers rate the pool 9.5/10 and praise its cleanliness; a few found the spa too chlorinated or too crowded.

Guide's tip. Ask about the water temperature and the indoor pool's opening hours before booking.

The pool. Indoor pool, outdoor pool and hot tub.

The hot tub. Hot tub on site.

Guests enjoy both pools, indoor and outdoor, without mentioning the water temperature.

Guide's tip. Heating of the outdoor pool isn't stated: outside summer, go for the indoor pool.

The pool. Indoor pool and heated outdoor pool.

Travellers rate the pool 9/10. I haven't yet found guest reviews that mention the water temperature.

Guide's tip. Children up to 12 can only use the indoor pool from 9:30 to 16:00.