Visit the city of Colonia del Sacramento on a day and also a great winery where you will taste the famous Tannat wine, and some others. Discover the colonial charm and history of this coastal city as you explore the cobblestone streets with your knowledgeable guide. Visit Barrio Histórico, Colonia's historic area and a UNESCO World Heritage Site and visit the Real de San Carlos area. Founded in 1680 by Portugal as Colónia do Sacramento, the colony was immediately disputed by the Spanish empire (they where settled on the opposite bank of the river, at Buenos Aires) for over 90 years.
The photo is courtesy of Viator.com