hi inOr i've just looked through my paperwork from when i stayed at the casa de sao domingos and there is no E-mail address or web site that i can see but there is a contact number +351961614766 both owners and their son speak good english. and while i had 3 fantastic nights in regua i didn't visit a winery and the many boat trips i took i pre-booked myself so if no one can answer your question i would give them a call. i hope you find what your looking for.

Hi. The room we stayed in did have AC. When we were there, we did not need it as it was weather unseasonably cool. However, the area is now having unseasonably hot weather, so you may well need it. The hotel is located on a hill overlooking the valley and there is likely to be a breeze through an open window if you prefer natural cooling. As for the fan, I don’t know but found the staff very accommodating in every way. If they have fans, I’m sure they’ll give you one. The simplest thing might be to email them directly from their website and ask about both the Dan and whether your particular room has AC. I hope this helps.

From the train station go left on the street. The street will come to a round-about. Stay left and go up the hill to the hotel. The walk will be about 20 minutes.

no bikers around, but if you have a car you can go to wineries close to the city. also, in Peso da Régua there's a very nice museum, called douro museum.