Diving through a pool of mud and dragging yourself under a tunnel in the middle of a cold July morning doesn't sound like an appealing prospect.
Having to do it twice sounds even less inviting but if you want to prove you're a tough guy or gal then it is all in a day's work.
The Tough Guy and Gal Challenge has been running for more than a decade and has expanded in the past few years to include more destinations around the country than just their spiritual home of Rotorua.
It's proving popular too, with more than 1000 people taking on the elements at Camp Wainui in Lower Hutt during the weekend.
Competitors come in all shapes and sizes with varying degrees of colour and creativity attached to their costumes from highlighter yellow to a group in cow-themed onesies.