Anybody has been to Cha Porto Formoso and Gorreana that can give a comparison? They are both tea plantations on the north side of Sao Miguel and pretty close together.
Carl's book included both of them as stops on a day trip from Ribeira Grande to Maia. Is it worthwhile to visit both? Based on reviews online, it seems Gorreana is a little bigger and has a nice hiking trail, while Cha Porto Formoso is just a small store/visitor center?