Chui (Brazilian side) or Chuy (Uruguayan side) is a small town located on the border between Brazil and Uruguay. Half of the town belongs to Brazil and half to Uruguay. The customs are on each side of the town. The month changing from October to November has been a country changing from Brazil to Uruguay.
Once in Uruguay, I left Chuy by bus to reach La Coronilla from where I walked the 20km until Punta del Diablo with all my stuff throw the Santa Teresa National Park. Actually,
I didn't walked straight ahead, so it was much more than 20km. The park have a camping. It may have been better using it and doing the way in two days.
In that park, we can find the Fortaleza de Santa Teresa, a star-shaped fortress, and a few beaches.
Barra de Valizas is a seaside village with very beautiful beaches. However, the accomodations prices are very high and the village itself isn't more interesting than Punta del Diablo, located at 40 km in the north. The only real interest of Barra de Valizas is its proximity with Cabo Polonio and the 10 km of beaches between both villages.
Cabo Polonio is a hamlet with less than 100 inhabitants surrouned by hudge beaches that constitute the Cabo Polonio National Park. The inhabitants are mainly fishermen and craftsmen.
After many recommandations, I decided to spend a few days in Colonia del Sacramento before taking a boat for Argentina. And it was a good idea! Colonia is a very charming town, very different from the other coastal towns full of beaches in Uruguay or the big city Montevideo.
From the top of the lighthouse, we can see the city of Buenos Aires, on the other side of the Río de la Plata river, very wide at this place.