From Marina Isla Canela towards the open sea to sail along the coast of Isla Canela, spotting the fine sand islands of Isla Canela if the low tide allows it. We enter the Spanish-Portuguese fluvial border along the Guadiana River. We pass between Villareal de San Antonio, with its peculiar Pombaline architecture, and Ayamonte. After the towns of Gerreiros do Río and Foz de Odeleite will appear Alcoutim and Sanlúcar del Guadiana. On the way back we sail at maximum power through the calm waters of the Guadiana, and we enter the La Canela channel if the tide allows it. After an exclusive navigation through the marshes, Isla Cristina, its fish market and our base port Marina Isla Canela will appear.