The wider area is known for some top-notch mountain climbing and hiking. Why don't you hop into a rental car, breathe in some clean, fresh air and get close to nature?
Ticked off all the main sights in Rio do Sul? If you have more time on your hands, there's plenty more to see down the road. Blumenau is just 40 miles away. Travelers who visit usually have the Vila Germanica Convention Center and Park on their must-do lists.