https://phys.org/news/2018-07-chile-restrict-tourists-non-locals-easter.html

However, it is those very tourists, alongside mainland migrants, who have become a threat to the island's well-being. Chile, which annexed the territory in 1888, has decided to act.

In 2007, Easter Island was designated a special territory while back in March, congress voted to limit the number of tourists and foreign or mainland residents allowed on the island, and the time they're allowed to stay.