Bowditch Street Park is a lovely grassed area, great for walking, jogging and even has some exercise equipment at the east end. There is also a park bench there (S 12° 21.447 E 130° 53.574) where you can rest your feet and have a break while you make your log entry. It also hides an open secret - it isn't really a park, it's part of the stormwater drainage system! It leads water through to Garamanak Park (mostly known by locals as Turtle Park) to the west in Lyons, and then on to Casurina Costal Reserve. The spine of Muirhead is along Asche St, with stormwater draining away to the east, going downhill along Muirhead Bike Path and out into the Buffalo Creek management area.
There is no dedicated parking available for this park, but there is plenty of on-street space available along the quiet suburban roads on each side. Just make sure not to block or park directly across from any driveways.
If you've never encountered this type of cache before, it may be a bit tricky initially (take note of the name of this cache to check you are at the right location). The hint should help! If you have found this type before, you've probably already grabbed the container before reading this far. :)