The western approach to Three Mile Stream Hut from the Hurunui River is best accessed by either 4WD or mountain bike from Lake Taylor. This negates a long road walk-in past Loch Katrine.
Once in the Hurunui Valley, a poled route runs up the valley to Hurunui Hut and its nearby swingbridge. Over the swingbridge, marked routes head further up the valley, down to the lakehead, and north-west up McMillan Stream which is the easier approach to Three Mile Stream Hut.
After crossing the bridge, take Hope Kiwi Track for 500m and then turn left onto Three Mile Stream Track. This track continues alongside McMillan Stream through forest to the toe of a spur coming off Macs Knob.
The track swings to the north-east and follows the streambed, alternating with short marked sections through easy gorges involving multiple stream crossings until the upper valley is reached.
A low pass at Pt839 is accessed up a steep spur where the track passes through bogland, forest and open tussock until Three Mile Stream is reached. It’s then an easy wander to the hut, sitting on a terrace back from the river. The hut has memorable ambience and is divided into three rooms, a design typical of many huts in the Lake Sumner area.
There is a spacious river flat extending out from the hut terrace and back into the north branch of Three Mile Stream.

