Climb 1693 metres up to Altimarloch, high above the clouds and the Awatere Valley below in Marlborough. With sweeping views out over the upper South Island and the surrounding mountain ranges, this route is well worth the trip up the hill on a clear day, and many drivers reckon it's worthwhile even when cloud rolls in.

The road is steep, slow and bumpy, tight in spots with hairpins on the way up. It's a gravel climb that's generally rated easy to medium — not technically difficult, just a long uphill chug. Allow time to stop for photos along the way. Note that it's not suitable for towing.

A popular little side quest off the Molesworth, this is a great detour if you've got a clear-ish day and want big elevation and even bigger views.