Buzios is also very intersting if you explore the city by car, there are several roads which leads you to many incredible ocean corners. In the picture you can see one very nice view from the road, this is the ocean part of Buzios, where the shore is absolutely dramatic.
We picked the wrong time to visit Buzios - August. In Brazil its winter, and, though warm enough to allow us to bath, I'm sure that the site didn’t show the life and joy of the hotter days. Anyway, it was good, everything living around and from the beaches, some of them wide, some more secluded, some very beautiful some very common. And, only a couple of hours driving from Rio de Janeiro, it must be a frequent brake in Rio's routine.
But... think positive. We were almost kings of the beach, with space and time for everything. And the local small goodies didn't fail their approach