FATMAP by Strava

Mason Lake, Lake Kulla Kulla, Thompson Lake through trail.

Trail through all lakes.

Hiking Severe

21 km
1.5 km
1.9 km
6-7 hrs
Low Point
259 m
High Point
1.7 km
Mason Lake, Lake Kulla Kulla, Thompson Lake through trail. Map

This is a popular hiking route which is generally considered to be severe. It's very remote, it features high exposure and is typically done between July and October. From a low point of 259 m to the maximum altitude of 1.7 km, the route covers 21 km, 1527 vertical metres of ascent and 1921 vertical metres of descent.


Amazing hike summitting mount defiance and visiting lakes.



Hiking challenging trails where simple scrambling, with the occasional use of the hands, is a distinct possibility. The trails are often filled with all manner of obstacles both small and large, and the hills are very steep. Obstacles and challenges are often unexpected and can be unpredictable.

High Exposure

3 out of 4

Some trail sections have exposed ledges or steep ascents/descents where falling could cause serious injury.


3 out of 4

Little chance of being seen or helped in case of an accident.

Best time to visit

between July and October


  • Alpine
  • Wildlife
  • Picturesque
  • Summit Hike
  • Dog friendly
  • Wild flowers
  • Water features
  • Family friendly
  • Forestry or heavy vegetation

Similar routes nearby

Guidebooks in this area