Well, you will find loads of places to go. Personally I prefer Canasvieiras for the night life – if you’re going between December and february – Joaquina is also a really nice place.
There are so many places to visit there: Lagoa da Conceicao is beautiful place.
Also, please don’t fail to visit Campeche, for me that is the most beautiful place over there, it is quiet but it is very, and I mean very, beautiful.