Yolngu artist Gunybi Ganambarr is known for his radical experimentation and innovative approach to materials. In addition to using the traditional bark and ochres of his artistic heritage, the artist often looks to more modern or industrial materials found on Country to make his work.

In Nganmarra, Ganambarr etches patterns into a disused galvanised iron water tank. The metalwork carries the design of the reservoirs of the Ngaymil/Datiwuy clans that are found between the Gurrumuru and Cato rivers, running into Arnhem Bay, in the Northern Territory. This area is home to a watercourse that combines salt water and fresh water, meaning it is regarded as an area of fertility for the Ngaymil people. It is also a point from which souls are delivered to and from the Earthly and spiritual worlds. Within this lagoon swim djanda (sacred goannas), their movements creating patterns on the water’s surface.