The tour operator conducts excursions that immerse guests in the authentic life and culture of the country’s great wine regions (Rioja, Ribera del Duero, and beyond). Meals are eaten at restaurants with regional specialties, and itineraries combine winery visits with museums, historic sites, even cooking classes. Whenever possible, groups stay at inns in converted buildings such as the 100-year-old Castillo El Collado, in Laguardia, and occasionally even in rooms at winemakers’ houses. The Caveat Schedules are not set in stone and can be modified or even occasionally canceled. And while bunking in winemakers’ houses sounds charming, it can feel more like visiting distant cousins than luxury lodging.