Horses living in the park are Yakutian semi-wild horses. These animals are shorter then normal horses and grow long hairs for winter season to help them survive the winter cold. These are purely grazing animals - they eat only grass species, and visit forested areas of the park only during the spring flood.

Horses for the Park are mostly bought in the Srednekolymsk region. There exist several villages where horses are held. Last years because of severe and snowy winters population of horses declined, and it became substantially harder to buy them. Sometimes it is needed to drive over 1000 kilometers to get to the place. Transport scheme is hard because roads to these villages often absent.