Ilha de Marajo, or simply ‘Marajo’, is the largest of the archipelago of the same name, and the largest river island on earth. It lies at the mouth of the Amazon and boasts huge golden beaches, thick jungle, and a wonderland of mesmerising mangroves home to numerous water buffalo (who often take a visit to the beach, too). This is the perfect location to enjoy outdoor adventure - visitors can look forward to boat tours, buffalo experiences, and guided footbridge excursions (or simply explore on their own). Swim and watch flocks of guarás at Barra Velha beach, or laze under the umbrellas at Fisherman’s Beach. The island had its cultural beginnings with an advanced Pre-Columbian civilisation from 400 BC to 1600 AD, a unique heritage that can be seen in the local art (make sure to visit the Mangrove Marajo Art Gallery).