The lake catchment is primarily manuka/kanuka scrub and fenced pasture.

There is a 4-kilometre (2.5 mi) loop walking track around the perimeter of the lake.

[4] The water quality of Lake Ngatu has been highlighted in recent times, with particular concerns of a summer algal bloom threat.

[5] The lake is monitored by Northland Regional Council, and the environmental information can be viewed on the LAWA website.

This Northland Region-related geography article is a stub.