While there might not be top attractions in Praia Linda, you can explore the larger area and discover places like Lagoa de Araruama and Praia do Popeye.
While Parque Estoril might not have many sights to explore, venturing just a little farther will lead you to top things to see and do like Siqueira Beach and Dunas Beach.
If you're spending some time in Baixo Grande, Lagoa de Araruama and Santo Antonio church are top sights worth seeing.