Arahura and Styx valleys tracks

The Arahura/Styx Valleys are popular areas for hunting, tramping and kayaking, with the lower valleys of both rivers also popular for trout fishing. The low Styx Saddle connects the two valleys allowing round trips during the summer and autumn. Browning Pass/Noti Raureka at the head of the Arahura River gives access across the Main Divide to the Wilberforce River. It is also on the route of the Arthur's Pass: Three Passes Route from the Waimakariri River over the Harman Pass, Whitehorn Pass and Browning Pass/Noti Raureka to the Arahura headwaters. It is suitable for well equipped people with previous backcountry experience. The best seasons for walking this track are summer and autumn. There are four huts to stay in along the way – hut tickets are required. The marked route to Mid Styx and Grassy Flat Huts requires at least two fords of the Styx River. Travel is not recommended during or following heavy rain and due to the constantly changing nature of the river, safe crossing will change over time. Take the time to fully assess your crossing point. Note: True left and true right refer to the side of the valley or river when looking downstream.

Styx Road End to Mid-Styx Hut

Time: 2 hr 30 mins to 3 hours

From the carpark the route initially follows an old farm track. Where the Styx River cuts in against a large shingle bluff, ford across the river to the true left where the route recommences and goes to Tyndall Creek. Head up Tyndall Creek for just over a kilometre to around the 400m contour line. Here the track exits on the true right of Tyndall Creek and climbs steeply up onto a bush terrace. The route is exposed for parts of the ascent. The track flattens at the top of the climb and continues along the terrace for half an hour to the Hut. Tyndall Creek is likely to be uncrossable following heavy rain.

Mid-Styx Hut to Grassy Flats Hut

Time: 1 hr 30 mins

From Mid Styx Hut the track travels across the terrace for about 30 minutes before dropping steeply back down to the Styx, which is crossed again picking up the route on the true right. Due to the river constantly changing, it may be necessary to cross a large side creek east of the route down from Mid Styx in order to find a safe crossing of the Styx River. Once across the Styx it is around 1 hour to Grassy Flat Hut.

Grassy Flat Hut to Styx Saddle

Time: 1 to 1 hr 30 mins

Leaving Grassy Flat Hut the track heads upstream and crosses an un-named creek. From here rock cairns and orange markers show the way to a short section of track which takes you through scrub to the Styx River. Cross the river and continue on the track through tussock and grass before entering the bush and climbing to the Styx Saddle. Here the route is marked with tall poles and crosses the saddle to descend and join with the sign posted junction in the track, high above the Arahura River.

Styx Saddle to Mudflats Hut

Time: 2 to 2 hr 30 mins

Follow the benched track until it ends at an un-named creek, immediately upstream of Snowball Creek, follow the un-named creek down until rejoining the track on the true left bank about 150 m before the Arahura River. From here the track drops gradually through the bush to the river bed and then follows this for a short distance before climbing onto a low terrace to reach a swing bridge. Mudflats Hut can be seen on a high terrace on the true right of the Arahura River and is reached by crossing the swing bridge.

Winter conditions

In winter the track from Styx Saddle to Mudflats Hut crosses several deep guts which can become avalanche chutes. Extra care is required during heavy snow conditions.

Mudflats Hut to Lower Arahura Hut

Time: 4 hr 30 mins to 5 hr

From the hut cross back to the true left bank of the river, rejoin the track and climb steeply before crossing Visitor Creek. From here the benched track follows a contour high above the Arahura River. Follow this formed track (with some detours where it has slipped or washed away) down the true left of the valley, continuing past the turn off to Newton Creek Hut. Above the Lower Arahura Hut the track gradually descends from its high contour before dropping into an unnamed creek and emerging onto a short section of track closer to river level. Follow this to the hut, ignoring a swing bridge which is passed on the way.

Lower Arahura Hut to Road End

Time: 2 hr 30 mins to 3 hr 30 mins

From the hut to the road end travel is a mixture of track and riverbed. You will need to negotiate several washed outside streams between the hut and the swing bridge at The Cesspool. Once reached, cross this bridge to the true right bank of the Arahura River and follow the old logging road and river flats through private farmland before reaching the public road near the Milltown Bridge. This road leads to Lake Kaniere and then onto Hokitika which is 26 km away.

Styx Saddle to Harman Hut

Time: 1 hr 30 mins to 2 hr

A further day can be added to the trip to take in a well worthwhile visit to Lake Browning/Whakarewa and Browning Pass/Noti Raureka. From the signposted junction at Styx Saddle follow the benched track which sidles and climbs high on the true left above the Arahura River before dropping down to the swing bridge across the Harman River. Cross this bridge and climb back on to the terrace to follow the track across alpine bog-land to Harman Hut. Harman Hut has a wood stove but firewood is scarce in the area.

Harman Hut to Lake Browning/Whakarewa and Browning Pass/Noti Raureka

Time: 3 to 4 hr

From Harman Hut follow the benched track for about 1.5 km before dropping down an unnamed side stream to the Arahura River. A short section of track takes you out to the open riverbed. From here boulder hop up the true left bank for about 1 km keeping an eye out for a large orange triangle on the true right bank. This marks the beginning of a climb to the benched track which sidles high above the Arahura River, avoiding an impassable gorge. The track eventually meets back up with the river. Cross at this point and follow the marker poles up a steep section before reaching a boggy terrace. From here the track winds its way through to Lake Browning before sidling the lake and climbing diagonally to the Pass just east of spot height 1,426 m. During misty, low cloud conditions it can be difficult to locate and follow the markers. Care is required.