On Monday 13 June, 2011 fourteen Bushwalkers from the Coast and Mountain Walkers, bushwalking club based in Sydney, set out on a thirteen-day walk in Kakadu National Park. The walk didn’t go quite to plan for one of the Group as Alan Dixon recounts.
After starting at Gunlom we walked on the plateau and in the gorges that the creeks had cut into the plateau, enjoying the wonderful scenery, including many beautiful pools. On Saturday 18 June we were following Cascade Creek upstream when we had to leave it, to get around a long pool. As we were descending a steep rocky slope to return to the creek at about 3:00pm one of the party, fell and tumbled down the slope for a few metres. We 
helped her down to the creek and immediately found an excellent campsite. She had a laceration on her forehead, a swollen knee and an injury to her hip which we could not identify, but which was later diagnosed in the hospital as a broken hip. After a night of looking after the injured party we decided to activate the GME 410G Personal Locator Beacon (PLB) that one of the group had.
The next morning we placed the GME PLB on a brightly-coloured groundsheet and set it off at 7:25 am. This model of PLB sends out its location, obtained from an inbuilt GPS, as part of the signal.
Within minutes AMSA (Australian Marine Safety Authority) rang our club contact, in Sydney. By email, he sent them a copy of my detailed itinerary, with grid references for all of our campsites. They were grateful for this information.
At 10:05 am an AMSA fixed-wing aircraft, sent from Darwin, appeared. It homed in on our PLB and started surveying the area.
At 10:35 am an RAAF Rescue helicopter from Tindal Base, near Katherine, appeared. It landed up on the plateau about 200 metres away. Soon after, four rescue men appeared.
The RAAF men treated the injured party, then they were all winched up into the helicopter, which left for Darwin Public Hospital at midday. The rescue plane left at the same time.
We were all very impressed with the manner in which AMSA and the RAAF acted. We are very glad that we had the GME PLB, as otherwise it would have taken someone several days to walk out and get help. For some years it has been standard practice in our club to carry a PLB on any walk in a remote area.