Ilha da Queimada Grande - restricted island covered in snakes

So it's the opposite of Ireland.

there are so many snakes on one island – by some estimates one snake per square meter (10.8 square feet)

Snake Island indeed

Is this the place where people go to capture the snakes to sell them but most of them get bit by the venomous snakes and die there?

Supposedly covered in snakes, but I don't see any in the picture.

Holy shit, they were not kidding about the snakes.

Chico Mendes Institute for Biodiversity Conservation

Legend

How the hell did they build a lighthouse there?