20.1 km in from start of the track and 11.3 km from the Routeburn Falls hut is the Lake Mackenzie Hut. This is usually the other hut used along with the Routeburn Falls hut as it has 50 bunks available. It also means that each of the days will be fairly even in terms of walking distance.
The Lake Mackenize hut has the same facilities as the Routeburn Falls hut but also has a campsite with 9 sites available.
The Lake Mackenzie campsite is next to the lake set into the bush slightly. No camping is permitted next to the lake and the DOC ranger will check. Swimming in the lake is allowed however no chemicals are permitted.
Lake Mackenzie Hut facilities are not allowed to be used so ensure you bring your own cooking device if camping here. Long drop toilets, running water, a sink and cooking shelter is available for use at this campsite.
From here it is another 8.6 km to the Lake Howden hut.