This is NOT a car parking area. It is a hangar apron. It needs to be kept clear for movement of aircraft in and out of the hangar building (labelled Geelong Gliding Club Workshop) immediately to the west of this area. Cars are sometimes seen temporarily parked around the workshop by people working in the workshop. Others must NOT leave their cars in this area.

"This area is used for glider trailer parking. It’s not a lawn. "
POI has no name
POI types: landuse-grass
OSM data version: 2021-05-29T07:59:45Z
#mapsme

"This purple polygon covers an area that is not part of the airport. It is adjacent to the airport, and has aircraft workshops and hangars on it, but it is private property. "
POI name: Bacchus Marsh Airport
POI types: aeroway-aerodrome
OSM data version: 2021-05-29T07:59:45Z
#mapsme

"This device is inside the building, which is only usually open at weekends and on public holidays. "
POI has no name
POI types: emergency-defibrillator
OSM data version: 2021-05-29T07:59:45Z
#mapsme

Is this Glider City Motel?

"created in error"
The place has gone or never existed. This is an auto-generated note from OMaps application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.
POI has no name
POI types: amenity-bench
OSM data version: 2021-05-29T07:59:45Z
#mapsme