Running east from Rio [1], the Costa do Sol lives up to its name by offering over 100 kilometers (60 miles) of gorgeous coastline that seduces Carioca and international sunseekers in droves. Come summertime, the main towns of Cabo Frio [2], Arraial do Cabo [3], and Búzios [4] in particular buzz with activity.
Links:
[1] http://www.moon.com/destinations/brazil/rio-de-janeiro/rio-de-janeiro-city
[2] http://www.moon.com/destinations/brazil/rio-de-janeiro/costa-do-sol/cabo-frio
[3] http://www.moon.com/destinations/brazil/rio-de-janeiro/costa-do-sol/arraial-do-cabo
[4] http://www.moon.com/destinations/brazil/rio-de-janeiro/costa-do-sol/buzios