Note: The Knockrow Supercharger (Macadamia Castle) is down and has been intermittently (mostly) down for the past week or so.
Tesla believes the fault has been identified but there is no timetable for the permanent fix at this point.
Anyone traveling in the area should be aware that it is highly likely to be not working or it may work but then shut down soon after you connect.
So, currently the dual port Coffs Harbour Supercharger at the Big Banana is the most northerly reliably functioning supercharger.
Fortunately, there are some HPWC options in the area of Knockrow. In particular the Byron at Byron Resort (which has a fantastic restaurant by the way) has 2 x 3/16 HPWCs. Also for those with dual or enhanced chargers there is 1 x 3/32 HPWC located at the Ballina Day Surgery which would be a faster option. This is located near the Ramada Ballina Hotel and there are numerous food options in the vicinity.
There are also plans to install a HPWC at the Macadamia Castle soon. There is currently a 1/30 J1772 at the location which requires an adapter and will deliver around 30km/h of range.
For those with CHAdeMO adapters there is a free Tritium Veefil at the very well located Byron Bay Library. I understand this unit is power restricted however and may only deliver around 120km/h of range.