This reserve has our favourite combination of gums, rocks and (usually) flowing water. This area used to be part rubbish tip and car graveyard, but it is slowly improving. Vehicles are currently prohibited in the reserve as the Council tries to rehabilitate the area from extensive damage. Work also appears to be underway to remove non-native trees from the area. However, new parking areas have been built, landscape works are scheduled to begin this financial year, and hopefully it will be reopened before long. Meanwhile, you are free to explore the area on foot.
Road access from the north-east is OK for 2WDs even if a bit bumpy in places. Access via the ford from the south-west will depend on how much water is being released from Melton Reservoir for the Werribee South farmers (see our "Water the Garden" cache (GC8D27, but now archived) for more of this infrastructure). This stretch of the river is home to fish such as carp, roach, redfin and some brown trout. Other species include tench, Australian smelt, common galaxias, blackfish, short-finned eel, mosquitofish and flat-headed gudgeon.
You are looking for a small, roughly cylindrical, container about 900ml, so no large swaps please. As usual, please replace the camo to look as natural as possible and ensure the cache is not visible to other passers-by before you leave. Some stealth may be required at weekends or public holidays. No hints, as the cache shouldn't be too hard to find.
Have you visited the Geocaching Australia Forum?