Overview: The fourth part of the documentary series "Terra Mater - Wild Brazil" portrays the coastal and insular world of Brazil. Humpback whales swim from Antarctica to the coastal waters of Brazil to bring this to their young. While the females care for their calves, courting the Walbullen with ornate jumps to the best mating opportunities. Idyllic beaches, dangerous snake islands, colorful coral reefs - these coastal world has to offer.