Monte da Casteleja's thirty-two hectares of vines were planted in 2004 on decomposed schist, a geology that forces roots six metres down and concentrates the fruit into wines that taste of the hillside rather than the cellar. The estate lies inland from Lagos, beyond the coastal highway, where the land rises into terraced slopes and the Atlantic influence gives way to the Monchique foothills. By 2010 the first harvest had been bottled — a Syrah and a field blend — and the tasting room opened to visitors who wanted to understand why Algarve viticulture, long dismissed as tourist curiosity, was beginning to appear in Lisbon wine bars. The guided Lagos vineyard tour operates mid-afternoon, when the light slants low across the rows and the temperature has dropped enough to walk the estate without glare. Tours are scheduled experiences, typically held between fifteen hundred and seventeen hundred hours, and include a walk through the vineyard blocks, an explanation of the schist terroir, and a tasting of four wines paired with regional tapas — presunto, queijo de Azeitão, marinated olives, and almond cake. The pairings are calibrated to the wines rather than the other way around, and the guide adjusts the sequence depending on what has been bottled that year. Algarve wine production is small-scale by Portuguese standards — the region accounts for less than one percent of national output — but the combination of Atlantic cooling, schist drainage, and long ripening windows has attracted winemakers who want to work outside the Douro and Alentejo hierarchies. Monte da Casteleja is one of six estates in the Lagos-Silves corridor now open to visitors, and the only one offering premium wine and tapas pairings as part of the standard ticket. The estate also produces olive oil, distilled aguardente, and honey from hives placed at the vineyard edge, and all three appear in the tasting room alongside the wines. The experience has become a fixture of Lagos wine tourism, drawing visitors who want to move beyond beach itineraries and engage with the agricultural landscape that predates the resort economy. Reservations are required, and tours are conducted in English and Portuguese depending on group composition. The estate does not offer drop-in tastings or self-guided visits, and the mid-afternoon window remains fixed throughout the year.