evidence: This mountainous island, which was made a state park in 1962, is located off of the southernmost point of the state of Sao Paulo. The waters around this island are teeming with many different species of whales, seals and dolphins. And if you’re lucky, you might even get a chance to swim with some wild dolphins. [...] Ilhabela, which is known as Brazil’s sailing capital, hosts the Rolex International Sailing Week each year — the largest sailing competition held in Latin America. Other watersports, including surfing and snorkeling, are also very popular on these islands. [...] If you’re looking for an island that has remained largely undeveloped, consider visiting Ilha Grande, which is located approximately 160 km (100 miles) from Rio de Janeiro. Over the years, this island has been used for some interesting purposes.