I agree that a day trip to Luquillo and the Rainforest makes for a wonderful day. But Luquillo is not a nude/topless beach at all. It is a great family beach, absolutely beautiful, just like a postcard. I have walked way up around the back many, many times, with wonderful memories

, but certainly this shouldn't be considered a topless or nude beach. And for the record, all I've ever seen on these "nice long walks" were men, not women.
But please do go to this beach, you will certainly be pleased with the beauty. But you won't be going topless here.