I recently returned from a wonderful trip to Florianopolis which also included three days and two nights in the area around Urubici in the mountains about 70 air miles inland from the coast. The scenery is striking, particularly to the east and southeast of the town. The escarpment marking the edge of the high plateau is breathtaking as are two roads that wind their way down the cliffs via seemingly endless switchbacks. There are falls to be visited, Morro Igreja (the highest point in Southern Brazil), adjacent Pedra Furada, and the Rio Canoas valley with its many farms growing just about anything you can imagine. It's a relaxing area that few people take the time to see - a place that can put your visit to Santa Catarina into perspective. Of personal interest to me was the fact that much of the conclusive geologic study conducted to prove the theory of plate tectonics (continental drift) was conducted in these mountains, comparing their rocks with those found in Africa.
Be sure to explore this region using GoogleEarth but be aware that an unusual number of photos are misplaced (although I've offered relocation suggestions that may have been implemented by the time you read this).
I had an absolutely perfect stay at Fazenda Fogo Eterno about 17 miles south of Urubici at KM 42 on SC 430. I have written a separate review of this farm inn you may want to read. The facilities, food, and small staff are incredible.