Only For the Bravest: The Most Dangerous Islands Around the World

Islands are usually associated with sunny vacations, sunbathing, and delicious cocktails. However, not all of them are the epitome of a tropical paradise. Some of them are a lot more sinister. That’s why visiting some of these dangerous islands is illegal, and if you still decide to give it a try, chances are that you will regret the fact that you did. Here are some of the most dangerous islands worldwide that only the bravest dare to visit.

North Sentinel Island


Part of the Andaman and Nicobar Islands in India, North Sentinel Island is a secluded and inaccessible island in the Bay of Bengal. The island is home to the Sentinelese, an indigenous tribe that has a long history of blocking interactions with the rest of the world, making it one of the most dangerous islands. They have a reputation for being very protective of their island and for attacking anyone who comes too close.

There is relatively little information available regarding their language, habits, and traditions because of their remoteness and little interaction with the rest of the globe. Access to North Sentinel Island is severely forbidden, as the Indian government has declared the island and the waters surrounding it to be a restricted area. This is not only to protect the Sentinelese people’s way of life, but also curious tourists who don’t know what they are getting themselves into.

Gruinard Island

Just off Scotland’s northwest coast lies a little island called Gruinard. In 1942, the British government carried out several rounds of experiments on Gruinard Island to evaluate the efficacy of anthrax as a weapon of mass destruction. The island was highly contaminated as a result of the testing, which featured the release of anthrax spores. Because of the extreme contamination, it was decided that it was risky for anyone to live on the island.

The British government didn’t start a decontamination efforts to restore safety to the island until 1986. Intense cleaning efforts and the use of chemicals were part of the process. After a long period of decontamination, Gruinard Island was marked as safe in 1990. And even though it’s safe to visit today, many people still consider it to be the “Anthrax Island”.

Ilha de Queimada Grande (Snake Island)

Snake Island, or Ilha de Queimada Grande, is a small island off the coast of Brazil. One of the deadliest snakes in the world, the Golden Lancehead Viper, is among the remarkably high density of poisonous snakes that call it home. Nowhere else in the world can you find the Golden Lancehead Viper except on Ilha de Queimada Grande, where it is native.

Because of the island’s seclusion and lack of natural predators, the snake population has grown dramatically. There is thought to be one snake on the island for every square meter. The Brazilian government has made entrance to Ilha de Queimada Grande severely forbidden due to the risk the snakes pose.

Poveglia Island


Poveglia Island is situated in Italy’s Venetian Lagoon. The island is renowned for being among the most eerie locations on Earth. It was formerly a plague victim’s quarantine facility before being converted into a psychiatric institution. In the fourteenth century, Poveglia Island was used as a quarantine location for people infected with the bubonic plague.

It is said that dozens of individuals died on the island over this period in history. In the 20th century, a mental asylum was set up on the island, further adding to its dark history. It is believed to be haunted by the souls of those who suffered and died on the island. Today, Poveglia Island has been abandoned and restricted to the general public.

Kanita is a wanderlust-fueled traveler with an inclination for unraveling the mysteries of history, the paranormal, and the bizarre world of medicine. As a true crime buff, Kanita's nights are often spent delving into the depths of chilling mysteries. Yet, it's not just the paranormal that captivates her—her background in medicine fuels a fascination with the weird and wonderful world of medical oddities, from twisted historical practices to the myths and legends that shroud the field. From exploring haunted locales to uncovering the strange and morbid tales of medical history, Kanita is your guide to the unconventional, the unexplained, and the downright eerie.

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