for those interested in dog friendly hotels to stay:

Foz do Iguacu: 

Iguassu Charm Suites  http://www.iguassucharmsuites.com.br/br/index.html

Buenos Aires:

Livian Guest house (very cool place, people are very nice and great location)

http://www.livianguesthouse.com.ar/

Krista Boutique hotel (even though they claim dog friendly, they weren’t as welcoming as Livian, I couldn’t really explore the hotel and gardens, had to stay always on the room with someone)

http://www.kristahotel.com.ar/

Florianopolis (Campeche) – awesome place and people!!!

http://www.naturcampeche.com.br/