The annual bull run in Pamplona, Spain, is being held this year for the first time since the pandemic.
Thousands of spectators are on site to follow the event, which has traditions dating back hundreds of years.
It is simply a matter of avoiding being stung by the bulls that are released on the city streets.
Something that is not very simple – only today three people were injured.
Watch the bulls and humans run along the streets in the player above.