The main part of the Ashburton River Trail is a grade 2 (easy) loop about 9km long. There are lots of nice curves, berms, humps, swooping dips, and other non-threating technical features including a few wooden structures. There's also a few grade 3 detours off the main track. It's a wonderful ride for beginners and is interesting for riders of all skills. The trail is well looked after and there is good signage.
And there's more! There is a 20 km trail off the bottom of the loop that runs all the way down to the river mouth. It's a shared runner-biker trail that is wide, smooth and without technical features. It makes for an excellent fitness spin of about 40km down and back. It's mostly in dappled shade.
This description updated March 2017.