Access is across private farmland, just south of Whataroa. See below for contact information to organise a visit.
This is a commercial tour run by the local landowner, and visits must be organised in advance. They normally last about 2 hours. Visits involve a bus ride along a farm track and a short walk with a river crossing to reach the outcrop.
Contact http://alpinefaulttours.co.nz/ (or phone 0800556244) to book a trip that will depart from Whataroa.