Up Winston Ave, through Shepherds Hill reserve to Eden hills station, and Eden hills. Or through back streets of Mitcham to brownhill creek, push up pony ridge (or ride if you're Ryan) then home through Belair NP?
We saw Ryan riding on Wednesday!
Could try the Winston one . I've done the Pony ridge one and it was pleasant but took me a long time as I had no hope of riding that track!!
The Winston route was best when we lived in Eden Hills. It's probably not so efficient for Hawthorndene. :)
I saw a couple of guys riding up Hillrise through Panorama today - they were making hard work of it.