Get up early one morning before the beach gets crowded. Have her stand near the water, and you stand so that you are pointing the camera at her with Tintamarre in the background, making sure NO ONE else can even think you are trying to include them in your photo. You can also ask the Club O Security guard to take the photo of her with your camera, that way he can be sure no one else is in the photo. Don't wait til noon time to try it. Other than that, can't help you.