Help Us Out, Please
Our Foreshore/Dock Volunteer Team has started its weekly dock maintenance and construction activities. We've noticed a disturbing decline in tidiness around the dock: one serious example is the ~15 litres of presumed used engine oil stored in miscellaneous containers alongside the workshop (see photo).

This poses several problems:
risk of leakage into the ocean
the containers are unlabeled and therefore the contents are only known to the person who filled them. Disposing of them properly requires knowing what is in them.
a volunteer has to take time out from their legitimate CFSA tasks to get rid of someone else's waste.





Here's a look at the first bit of data, during the period 6 - 8 Nov 2025. We had a blow of about 25 kt (based on WeatherUnderground: Constance Cove) on 7 Nov, from the SE. I've overlaid the GNSS positions (black circles) on a satellite GoogleMaps layer. The max range of motion recorded was 7m.
Lots more experimenting and recording to come. Next I'll record at several of the rock anchors, to confirm the magnitude of position drift from the GNSS. We'll also want to record at D dock, and during some stronger winds.