Next weekend about 400 athletes will take on a race unlike any event in New Zealand.
The Butterfly Creek Nighttime Madness in Wellington is an after dark adventure for all levels of skill and fitness.
It is one of the few mountain race challenges run in the dark.
"The event is designed for everyone," said event organiser Luke Paardekooper.
"My favourite thing about this event is it's approachable for athletes of all abilities and it is something totally different.