8Fraser Island, Australia
Australia is known for its dangerous wildlife, and Fraser Island is a prime example. While the island’s beaches are beautiful, they are also home to a range of deadly hazards. The waters around Fraser Island are infested with box jellyfish, whose venom can cause cardiac arrest in minutes. Additionally, the island is home to saltwater crocodiles, one of the world’s most aggressive predators. On land, visitors must be wary of the island’s resident dingoes, which have been known to attack humans. Swimming in the ocean here is highly discouraged, and visitors are advised to be extremely cautious when exploring the island.