Hello again, We have decided to make our trip to Buenos Aires the last 2 weeks in August when Oklahoma is at it's hottest. Is a day trip to Montevideo or Colonia del Sacramento a good idea? Which is best or is there a better place to go? What ferries do we take? How much does the fare cost? Is it an easy day or too much for just one day? Thank you in advance for your wonderful advice. okguy