i am thinking of doing the routeburn track as well as other tramps do i need crampons?

Answer 1

Nope. I walked it once and I live nearby. But take plenty of warm clothing and a change of clothes. Fiordland is one of the cooler, wetter parts of NZ, and the weather is unpredictable. Out of all the things that can spoil your day here, hypothermia is the most common. But it's a fairly easy walk, with good huts along it. Enjoy.