Brazil's government has prohibited public access to Ilha de Queimada Grande, known as 'Snake Island,' due to the large number of snakes living there.
Notes on verification
Confirmed by multiple independent sources including Wikipedia, Atlas Obscura, WorldAtlas, IFLScience, and A-Z Animals. Minor nuance: it's the Brazilian Navy specifically enforcing the ban, not 'the government' in a broader sense, but this doesn't undermine the claim's substance.
Sources
- Strange Planet: Islands You Never Want to Visit | National Geographic (nationalgeographic.com)
- https://www.atlasobscura.com/places/snake-island-ilha-de-queimada-grande (atlasobscura.com)
- https://www.worldatlas.com/articles/brazil-s-forbidden-snake-island.html (worldatlas.com)
- https://www.iflscience.com/let-s-explore-ilha-da-queimada-grande-the-forbidden-snake-island-66390 (iflscience.com)
- https://a-z-animals.com/animals/snake/snake-facts/snake-island-most-snake-infested-island/ (a-z-animals.com)