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 and parts of the Waikato are at Level 3. DOC huts and campsites are closed in these regions. The rest of New Zealand is at Level 2.