Lake Sumner - Nina valley tracks & routes
There is no water at Devils Den Bivvy
Fill up you water containers at the creek approx. 5 minutes before reaching the hut.
View a map of the Nina valley
Nina Valley Track
SH7 to Nina swingbridge – 1 hour
Cross the Lewis River via the swingbridge and follow the true right bank for a short section before climbing briefly onto a terrace. The track then heads northwest away from the river and sidles through beech forest above the Nina River. The river is reached after about an hour of walking. The track continues up the true left of the river to where the Nina swingbridge crosses it.
Nina swingbridge to Nina Hut – 2 hours
After crossing the bridge, the track heads up the true right of the river, gradually climbing to reach the Nina Hut (standard 10-bunk hut).
Lucretia Hut route
Nina swingbridge to Lucretia Hut - 3 hr
From the Nina swingbridge (do not cross) continue up true left of the Nina River until you reach Lucretia Stream. Climb over a small gorge before descending to cross the stream. Continue up the true right to reach the hut situated on a tussock flat (basic 2-bunk hut; no hut tickets required).
Devilskin Saddle Route
This route links the Nina and Doubtful valleys via Devilskin Saddle. It can be walked in either direction, but it is recommended you walk it from the Nina valley. This trip is suitable for experienced trampers and combines mountain-beech forest, river flats and an alpine saddle crossing.
Nina Hut to Devils Den Biv – 2 hours
The track from the hut sidles through beech forest high above the Nina River. This section is a little harder to follow, but is reasonably well marked. Gradually gain altitude to reach Blind Stream after about an hour. The track climbs above the true right of the stream and very steeply up a spur. Use tree roots for hand and foot holds to avoid a hidden waterfall. Track then levels out and reaches the old hut site at the tree line. This area is suitable for camping in summer but is avalanche prone in winter and spring.
From here the route continues up the true right of the stream through waist-high red tussock. This section of track is a route only, with risks of avalanches in winter and spring. Follow marker poles as the route sidles away from the stream and climbs for about 30 minutes to reach Devilskin Saddle where there are good views down both valleys. The new Devils Den Biv (basic 2-bunk hut) is a further 100 m along the saddle.
Note: This area is not suitable for camping. Trampers will need to return to the old hut site if they need to camp.
Devils Den Biv to Doubtful Hut – 3 hours 30 min
From the hut, follow marker poles down to Devilskin Stream where a track is picked up at the bushline. This track sidles along high on the true left above the stream, through silver beech forest. It eventually descends steeply to the confluence of Devilskin Stream and Doubtful River.
Doubtful River must be crossed here. This crossing could be dangerous during or after heavy rain. Doubtful Hut (basic 2-bunk hut) is situated just downstream on a river terrace. From Doubtful Hut it is a two hour walk to cross the Boyle River to reach SH 7.
View the Lake Sumner and Lewis Pass access map
Lake Sumner Forest Park lies 100 km northwest of Christchurch between the Lewis Pass and Arthur's Pass National Park.
Access is off SH7, approximately 50 km after the turn-off to Hanmer Springs and 10 km from Lewis Pass. There is a car-parking area just opposite Palmer Lodge (private lodge owned by NZDA). Leave vehicles at your own risk. A swingbridge over the Lewis River gives access to the Nina Valley.
East West Coach Services run daily between Christchurch and Westport – 0800 142 622.
Atomic Shuttles run Christchurch to Nelson and Nelson to Christchurch daily. Ph +64 3 3 349 0697, freephone 0508 108 359, www.atomictravel.co.nz
Further information and transport bookings can be made at the Hanmer Springs i-SITE Visitor Centre.
Plan and prepare
Safety is your responsibility:
Have the correct and the most up-to-date information
Take a topographic map if going into more challenging country, i.e. something more than a tramping track.
Always be prepared for sudden weather changes. Check the latest forecast, especially if any river crossings are required.
Equip yourself well and prepare for the worst. Take enough food and water and the right clothing.
Ensure someone else knows where you are going and when you plan to return.
If staying in huts, fill in the intentions book. This may save your life.
Dial 111 immediately for any fire emergency.
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