From Te Anau on the South Island, follow signs for Milford Sound on Highway 94. After 107 km on a road with superb views, including Lake Te Anau, Eglinton Valley, Mirror Lakes, Lake Gunn, Christie Falls, Homer Tunnel in a snow-covered cirque and Hundred Falls, you will reach the Chasm Walk car park, signposted on the left.
(S/E) Follow the Chasm Walkway (south-west) through a lush rainforest populated by birds such as the colourful Kea mountain parrot, which will be delighted to peck at your favourite treats, the door seals and windscreen wipers of your vehicle, when you're not looking!
(1) At the fork, keep right and approach the deep chasm formed by the Cleddau River, which cascades over the rocks with a terrifying roar and swirls in the devil's pots, disappearing and reappearing a little further on. Cross the river via a first footbridge, then a second one to complete the small loop.
(1) Turn back to return to the car park (S/E).