- Time
- 2-3 hours to the bivvy
- Grade
- Moderate
- Access
- Turn off SH73 2km north of Cass and take the gravel road down to the Mt White Bridge over the Waimakariri River. Follow the signpost to Hawdon Shelter and the track up Hawdon Valley. Sudden Valley enters the Hawdon, from the west, 1km up the valley
- Map
- BV21