Some Dangerous Islands just shouldn't be visited. Unlike Ibiza, Malta or Hvar, these islands aren't known for their wild party scenes and gorgeous beaches. Instead, you'd need to watch out for dangerous animals, breathe through a gas mask or pray the ship even makes it to shore. Here are eight deadly islands where you definitely don't want to be washed ashore.

1. Ilha da Queimada, Brazil

Ilha da Queimada, nicknamed Snake Island, lies off the coast of Brazil and is home to thousands of Golden Lancehead Vipers – and little else. The snakes are among the world's most venomous, and there is, according to local legend, around five of the slithering critters to every square metre. For years, the only human inhabitant was a lighthouse keeper but now the Brazilian Navy has banned all civilians from the island.

2. Miyake-Jima, Japan

Found in the Izu islands of Japan, Miyake-jima's most prominent feature is the active volcano, Mount Oyama, which has erupted several times in recent history. Since the most recent explosion, in 2005, the volcano has constantly leaked poisonous gas, requiring residents to carry a gas mask at all times. Sirens go off across the island when the levels of sulphur rise sharply.

3. Saba, Netherlands Antilles

According the website of the Caribbean Hurricane Network, the tiny island of Saba has been hit by more severe hurricanes in the last 150 years than any other in the region, including by 15 category three storms and seven category fives. Head there during the winter.

4. Bikini Atoll, Marshall Islands

This Unesco World Heritage Site is dangerous for two reasons: nuclear radiation and sharks. It was the site of more than 20 nuclear weapons tests between 1946 and 1958, and – although the islands were declared 'safe' in 1997 – their original inhabitants have refused to return. Eating locally grown produce is not advised. So no chomping on fallen coconuts. Furthermore, the lack of fishing in the area during the past 65 years means that sea life – including sharks – have flourished which, along with the numerous shipwrecks in the region, attracts hundreds of divers each year.

5. Gruinard Island, Scotland

This small island in the north of Scotland was used by the British government for biological warfare testing during the Second World War. Experiments were carried out on the uninhabited island using the highly virulent anthrax bacterium, which killed hundreds of sheep and forced the island to be quarantined. The island was decontaminated in the 1980s, using hundreds of tonnes of formaldehyde – another potentially hazardous material.

6. Farallon Islands, US

Between 1946 and 1970, the sea around the Farallon Islands off the coast of San Francisco was used as a dumping site for radioactive waste. An estimated 47,500 55-gallon (208-litre) steel drums were discarded here but their exact location and the risk they pose to the environment is unclear. It is also believed that attempting to remove them would cause more damage than leaving them untouched. There is also an extensive elephant seal population, which attracts scores of Great White Sharks. Think twice before snorkelling.

7. Ramree Island, Myanmar

This island, off the coast of Myanmar (Burma), is famous for a gruesome incident that occurred during the Second World War. In 1945, following fighting between British and Japanese troops, an estimated 400 Japanese soldiers were forced to flee into the marshes that surround the island, where they were apparently set upon by the island's sizeable population of saltwater crocodiles. The incident is, according to the Guinness Book of Records, The Greatest Disaster Suffered [by humans] from Animals.

8. Danger Island

Found 800 kilometres south of the Maldives, Danger Island makes our list entirely for its fearsome moniker. The name is thought to derive from the lack of safe anchorage, which made trips to the island particularly risky for early explorers.