You will discover how the estate produces its wine. It is not the castle (dwelling house) that we visit but the technical installations (vat room, cellar, cellar, storage, museum or collection, tasting room, etc.). With some exceptions, the visit is always guided by a person from the property. Some castles will also tell you about their architecture, their history, will take you to the foot of the vineyards ... Except when it is clearly announced "without an appointment", a visit to a castle is always by reservation.
For the winegrower, it is simply a question of being able to organize the reception of visitors as well as possible. The easiest way is to call the castle directly and say that you want to visit it. Rest assured, they're used to it, you won't bother them. Some areas may have a full schedule for several days, try to book your visit as early as possible.
If you want to know more about Médoc wines and its appellations, it goes here!