Sumo Run Ireland is returning to Dublin's Marlay Park this afternoon.
The event is a 5k fun run - wearing inflatable sumo suits - to raise funds for Purple House Cancer Support, which helps over 1,000 families every year.
The run is currently a Guinness World Record holder for the largest gathering of people dressed in sumo suits.
There is a session of sumo yoga before the run, and runners get their own Sumo suit to keep.
You can register at at the Sumo Run website.