Those who want to come to the exclusion zone of Chernobyl have to file documents for a permit two weeks before their visit. Then they are instructed at the checkpoint: visitors are not allowed to smoke, eat in the open air, take any plants or items away from the zone, drink water from the wells, rivers or any other ground sources. Bodies should be covered with clothes leaving as few exposed areas as possible (the seamless apparels are preferable).
The territory is strictly guarded.
In Chernobyl you feel like being in some parallel universe.
Wild Przewalski's horses were once brought here in the amount of some dozens. And they got accustomed to this place. Now their population has reached seventy heads.