My husband and I are planning a side trip from BA (via ferry) to Uruguay for 8 nights in late October. We are thinking of spending 3 nights at an Estancia in Carmelo, 3 nights in Montevideo and 2 nights in Colonia. We are not interested in more than a look at Punta del Este.
Where is the best place to rent a car in Colonia? Any must-see/do suggestions along the way?