2 km south of Masterton, turn off SH2 into Norfolk Road, which turns into Mt Holdsworth Road. Follow signs to Tararua Forest Park, about 15 km from SH2.
There is a daily rail connection and regular bus service between Wellington and Masterton (17 km from Holdsworth). Taxis or, for large parties, pre-booked buses, can be hired for travel between Masterton and Holdsworth.
Auckland is at Level 4 and other regions at Level 2.