in fact, in addition to exploring the wild beaches, a second day can be used to take a tour in the canal do bacalhau, a beautiful area of shallow waters rich of vegetation and fauna.

this link shows praia dos búzios on a wikimapia - the link as we present it is best seen using google chrome, as it might not open correctly with other browsers. 

the beach is to the left of pedra da tartaruga, with almost no visible sand.  the white beach on the right is praia do perigoso.