Ferny Gair can be accessed via the Avon valley by obtaining permission to cross private land. Contact Bernard and Jo Mason phone +64 3 572 4803. (Access is closed late winter/ early spring due to farming activities.) If permission is granted a key can be obtained from the Masons for a small donation.
From Avondale Road a 4WD track for 6 km through private property will take you to the Ferny Gair Conservation Area Boundary. From here a 2 hr 30 min walk on a marked track up the Tummil River takes you to Lake Alexander.