These are unmarked routes – suitable for fit, experienced and well-equipped trampers. They are subject to low cloud and poor visibility. Topographic maps, route finding and navigation skills are essential. When snow covers the ground, routes will be less obvious and there is also risk of avalanches.

Foggy Peak and Castle Hill Peak 

From the lay-by at the top of Porters Pass, follow an unmarked but well-worn trail up through low scrub and tussock and across gravel screes towards Foggy Peak. Large cairns mark the way in places.  

Time: 1–2 hr

Beyond Foggy Peak, follow the broad ridge. The ridge narrows for the final climb to the trig on the summit of Castle Hill Peak.

Time: 2–4 hr

The Gap

From Castle Hill Peak, experienced parties can traverse across to The Gap. Beyond peak 1941, sidle just off the north side of the ridge until you reach the bluffs above The Gap. Descend down scree to the north for about 50 m, to a shoulder that leads directly back into The Gap.

From The Gap, a scree slope and rocky ridge provide a good route down to the Kowai River. Some rock scrambling is required. Note: If planning to use this route, prior permission must be gained from Brooksdale Station.

Mt Torlesse via Kowai River

Access to the base of Mt Torlesse is across freehold and leasehold land and permission must be gained from Brooksdale Station. DOC is unable to provide the contact details for Brooksdale Station.

If permission has been obtained, respect this as it is a working station; leave gates as you find them and avoid disturbing stock. Dogs and vehicles are prohibited.

From State Highway 73 follow an old vehicle track up the true right of the Kowai River to opposite Kowai Hut. Note: this is a private hut and not open to the public.

Time: 1 –2 hr

The spur on the true right of the side stream, by the hut, is the most direct route to Mt Torlesse.The spur starts off with a gradual climb, becomes a steep ridge, and leads directly to Mt Torlesse.

Time: 3–4 hr

Trig M to Rabbit Hill

An old farm track starts alongside State Highway 73, halfway between Porters Pass summit and Lake Lyndon. Climb up the track amongst diverse shrublands, traversing open ridges to trig point M above Lake Lyndon.

Time: 2–3 hr

Follow the ridgeline from Trig M to Rabbit Hill. This passes through a tussock basin just before the final ascent to the summit of Rabbit Hill. There are numerous springs in this area and it can be very wet underfoot.

Time: 3–4 hr

The Torlesse Range is one of the most accessible in the country, located alongside State Highway 73, only 1 hr 15 min drive from Christchurch. The main access points into the park are the Kowai River (private), Porters Pass, Lake Lyndon Road, Craigieburn Road, and the Porter Heights Skifield Road. Access to some areas requires permission from neighbouring landholders.

All these trips are routes only – unmarked and suitable for fit, experienced and well-equipped people.

Winter snow and ice could make these routes difficult and dangerous.

NZTopo50 map BW21 (Springfield) covers this area.

Times are approximate and one way.