This is beach two (of four) at morro do sao paulo.  Morro is this beautiful penninsula with beaches on 3 sides that is a super mellow resort outside of Salvador. 

I spent 5 days here, saw three sunrises, and never wore any footwear (thanks to this accomplishment, I also got a becho do pe, a nasty little parasitic spider in my foot, but it was fun anyway)