Follow the creek until the marker shows where to cross to the true left (looking downstream) and start climbing through beech forest. You can see old saw-milling snig lines near the start of the track. After two hours you will be in Glacier Basin, where you can follow the creek further up to view the Humboldt Mountains. Great bird life.
25 minutes from Glenorchy, the track is signposted from the Glenorchy / Kinloch Road.
Don't go above bush line in winter and spring, as the area is prone to avalanches.
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.