On the road toward Glendhu Bay and the Matukituki valley, a small conservation area offers two very different walks from one car park. The Diamond Lake Loop Track is a quick circuit through grassland and rock outcrops to a small, still lake, a pleasant leg-stretcher that takes under an hour. The Rocky Mountain Track climbs higher through schist tors and tussock to a lookout and then a summit with views over Lake Wānaka, its islands, the town and the Southern Alps beyond. The climb is moderate, with steps and rocky pitches, and the reward is a panorama that rivals Roys Peak without the same crowds. Many walkers do the lake loop first for a warm-up, then continue to the higher lookout, making this a half-day outing. Dogs are not permitted, and the area is popular with climbers who use the rock faces.
How to visit
The car park lies about 20 kilometres west of Wānaka town on the Wānaka–Mount Aspiring Road, roughly a 25-minute drive. There is no public transport, so you will need a vehicle or shared ride. The walks are free and open year-round, though the upper track can be hot and exposed in summer and slippery in winter. Allow around 30 to 40 minutes for the Diamond Lake loop and about three hours return for the Rocky Mountain summit, depending on pace and photo stops.
What to expect
The lake loop starts with a gentle walk over open ground and returns on a different path with a view back toward the road. The Rocky Mountain Track climbs steadily, with rock steps and stretches over bare schist where the path is marked with poles or cairns. From the first lookout you see Lake Wānaka and the islands, and the higher summit adds a wide view of the valley, farmland and mountains.
Carry water, sun protection and a warm layer, since the wind can be strong on the ridge. The tracks cross a mix of conservation land and farmland, so follow signs, close gates and keep to the marked route.
Making the most of it
Start in the morning for the best light and cooler temperatures, and allow time for a picnic at the lookout. Take binoculars for birdlife and for spotting the lake’s islands, including Mou Waho. Rock climbers will find a number of well-known crags nearby, but those are for experienced climbers only.
After the walk, continue to Glendhu Bay for a swim or coffee, or return to Wānaka via the lakeside road. If the weather is poor, the lake loop is a good low-level alternative that still gives a sense of the landscape.
Good to know
The car park can be busy at weekends in summer, and there are no shops or water supplies at the trailhead, so bring everything you need. The upper section of the Rocky Mountain Track crosses exposed ground where lightning and wind are real hazards, so turn back if a storm builds.
In spring you may see lambs in the adjoining paddocks, and in autumn the tussock turns golden, which gives the views a different feel. Take care near rocky edges with children, and keep a close eye on the weather forecast before you leave town.
What to expect
The experience
Two free self-guided walks from one car park: a short loop to Diamond Lake and a longer climb to a Rocky Mountain lookout.
Best time
Morning or late afternoon in settled weather; avoid midday heat in summer.
How long
Thirty to forty minutes for the lake, about three hours for the summit.
Tips
Bring water and sun protection, wear shoes with grip for the rock, and leave dogs at home.
Quick picks
- Best for
- Walkers who want big lake views with fewer crowds than Roys Peak.
- Families
- The lake loop is ideal for children; the summit suits older kids who enjoy scrambling.
- Couples
- A morning climb followed by a swim at Glendhu Bay.
- Pair with
- Glendhu Bay or a lake cruise to the islands you can see from the summit.
- Time needed
- Half a day for both walks.
Good questions
How long does Rocky Mountain take?+
Allow about three hours return for the summit track, depending on fitness and how long you stay at the top.
Are dogs allowed on these walks?+
No. Dogs are not permitted in this conservation area, so leave them at your accommodation.
Where do the walks start?+
Both begin at the same car park on the Wānaka–Mount Aspiring Road, about 20 kilometres west of the town.
Is Diamond Lake worth visiting on its own?+
Yes, if you only have an hour. The loop is easy, scenic and well suited to children, though the summit views are the highlight.
Is there a fee?+
No. The tracks are on public conservation land and are free to use.