An annual cheese rolling competition takes place today in Cheltenham, Gloucestershire.
For generations people having been chasing cheese down Coopers hill.
People from around the world come to see this sheer drop in the Cotswolds to hurl themselves down the hill - or watch others.
Police have this year warned the family firm who have provided the cheese for a quarter of a century that if someone gets hurt or killed they could be sued.
The worst year for injuries was in 1997 when 33 people needed medical treatment.