Quinta do Seixo (Sandeman).

Perched on the south bank of the Douro River, Quinta do Seixo is the striking flagship estate of Sandeman, where 17th-century heritage meets sleek, modern design. The 100-hectare property is famous for its dramatic, sweeping views of terraced vineyards—some boasting century-old vines—and its cutting-edge winery equipped with robotic lagares that replicate traditional grape treading. Visitors can explore the estate’s biodiversity trail on a self-guided walk before tasting premium Douro table wines and Ports beneath the watchful gaze of the brand's iconic caped "Don" figure. For a complete experience, book a picnic among the vines or dine at the on-site restaurant, Sandeman Seixo by Vasco Coelho Santos, which pairs seasonal Portuguese dishes with the estate’s best pours.