Competitors from around Rotorua slogged through mud, plunged into an icy cold lake and crawled through barb wire obstacles, all to be deemed "tough guys and gals".
The annual Hydr8 Zero Tough Guy and Gal Challenge took place on Saturday at Lakes Ranch in Tikitere, putting competitors through the ringer to see if they could stand the test.
The course included water trails, net climb, barbed-wire obstacles, swamp crossings, native bush trail, wobbly water bridge, open paddock running, hurdles, wire rope bridge and tunnels.
Competitor Helen Harris took part in the challenge with three work colleagues, dressed as ninja turtles.
"It was awesome, quite hard, but so much fun."