This is one of the most beautiful beaches I have visited. It's in Pipa, Brazil. I was fortunate to visit the area in early May, when there is less tourism, so I was virtually alone and could enjoy the whole beach. It's a curious place because the beach is closed off from behind and from the sides by the Brazilian Atlantic forest, and it can only be accessed during low-tide from Praia do Centro and Praia do Madeiro, the two beaches that are on either side of it. And the best thing is, with a little luck, you can swim alongside dolphins ve frequent the beach. It´s great. The rest of the year, Pipa is a wonderful place filled with people from all over the world looking for (and finding) a heavenly place to relax and have fun. There is a lot of information and photos of this beach and many in pipanatureza.es. On that website, in the beach information page, there is a 360 degree picture so that you can view them as if you were turning in circles.