This journey along the Guadiana River blends mining history and border landscapes. Highlights include... Port of La Laja, he El Granado mill and Sanlúcar de Guadiana, where its castle and cross-border zip line connect with Portugal. To complete the day, a visit to the municipality of is suggested. Ayamonte, Isla Canela, a historic fishing village that embraces the river's mouth, offers rich gastronomy and privileged views of the Atlantic.