Approx. 2 hours from Chch..Turn off at Staveley. Time for the Sharplin Falls walk is 45 minutes according to the sign. This is each way.
This is an easy walk through some very pretty forest & ferns. There are two possible tracks to take to the falls: both start some 5-10 minutes from the car park.
Route 1: This is the riverbed route, and is the easier of the two, but beware the slippery rocks! There is also the prospect of watching trout in the river.
Route 2: The high route, zigzagging up the hill to converge with the river track some 20 minutes later.
The falls themselves are not so spectacular, but the gantry you have to walk is not to be missed. I found it quite scary at first.