Doñana desde Sanlúcar Nature · Sanlúcar de Barrameda, Costa Noroeste, Cádiz Sanlúcar is a gateway to Doñana National Park, on the other bank of the Guadalquivir; the Doñana site was inscribed as a UNESCO World Heritage Site in 1994. Doñana National Park was declared in 1969. Parque Nacional 1969; Patrimonio Mundial UNESCO 1994 Photo: Antonio M. Romero Dorado (CC BY-SA 4.0) What to see and do in Sanlúcar de Barrameda