CITY: Porto Alegre STADIUM: Estadio Beira-Rio (capacity: 48,849). Located on the banks of the River Guaiba, the Estadio Beira-Rio is the home of two Brazilian clubs - Internacional and neighbours Gremio. Porto Alegre has a subtropical climate so take an umbrella if you go there next summer. One of Porto Alegre's biggest attractions is the famous Lago de Patos (Ducks Lagoon), which is surrounded by one million trees.