The Yirralka Rangers were established in 2003 and represent the Yolngu Traditional Owners of northeast Arnhem Land. The Yirralka Rangers manage the Lanyhapuy Indigenous Protected Area (IPA), which extends 6,900 sq. Km from Gove Peninsular to Blue Mud Bay. Yirralka employ 50 Yolngu staff who are based at 14 homelands throughout the Lanyhapuy IPA. Yolngu Traditional Owners of Blue Mud Bay challenged the Aboriginal Land Act for recognition of their ownership of the intertidal zone. Successful in their quest, the new definition includes the intertidal zone, and is applicable to all Aboriginal land on the coast.
Resource management activities include monitoring of marine turtles and dugongs, protecting turtle nesting areas, marine debris management (including Ghost Nets removal), protecting cultural heritage areas, fire management, feral animal and weed control, tourism, visitor management, and working with kids to pass on traditional knowledge.