It involves running, climbing and a lot of water.
Yet undaunted competitors flocked to tackle the city’s first ever Primal Stampede event on Sunday.
The urban assault course was set up at Leeds Dock in aid of the Jane Tomlinson Appeal and companies including Jet 2, Leeds Building Society, the Royal Armouries and Eversheds were among those entering teams to go head-to-head.
The 4km track featured 13 challenging but fun obstacles, each of which participants had to attempt twice as the route was two laps in total.
All profits from the event, organised by Primal Gym, went towards the Jane Tomlinson Appeal and Cash for Kids.
Siobhan Curtis, Legacy Manager at Jane Tomlinson Appeal said: “As the first event of its kind in Leeds we are so grateful to the team at Primal for asking the Appeal to get involved. Everyone loves an event with a bit of friendly competition and the course the team have designed will be a testing one but a great opportunity for some team building.”