There is a public footpath through this pasture in Bangor, Wales. There is one stallion:
... and about 15 mares plus their babies.
It's about 10 acres of grass on the edge of town (literally the edge - one border of the property is a cliff that drops to the sea). Apparently, every spring the herd is dropped off and left until autumn. They have only the trees for shelter, and a small creek for water.