praia de sepetiba can be seen on this satellite map - in the link as we publish it, zoom settings open correctly using chrome, but may not display the exact coordinates using other browsers.

on this link, the instituto estadual do ambiente - inea, provides the suitability of several beaches in the sepetiba bay area, including praia de sepetiba.

constantly updated, a red flag means that swimming is not advisable, a green flag means waters are clean, and a yellow flag suggests using own judgment.  

any of rio's beaches may have polluted waters within 24 to 48 hours following heavy rains.