Heard Island in Australia lies between Madagascar and Antarctica, and it is strictly protected as one of the most dangerous and hardest-to-reach places in the world, beside being extremely windy. If anyone wishes to visit, they must first obtain a permit from the Australian Antarctic Division.
In 2000, authorities noticed a two-kilometer-long lava flow coming from Mawson’s Peak (2745 m), and the volcano has been active ever since.
Pine Gap is considered as one of the country’s most secretive and mysterious intelligence facilities. Located 18 km southwest of Alice Springs, it is run by the governments of Australia and the United States, and it’s meant to gather intelligence by intercepting a wide range of signals. The area is off-limits unless you work there, and what’s going on in there remains a mystery.
Carnac Island is located 10 km southwest of Fremantle in Western Australia, and it’s one of the two islands infected with tiger snakes, which are one of the world’s deadliest species.
Going beyond the beach of Carnac Island requires special permission from the Department of Conservation and Land Management. There have been many theories, but no one really knows how the island came to be a safe haven for snakes.