Has got to be the route from Halfmoom Bay to Earls Cove on the Sunshine Coast.
This is like a race track, with corners and sweepers galore!! If you can wait out the traffic after getting off the ferry, it's an amazing ride, and people in vehicles actually do pull over where able to let you by.
I had to turn around last weekend and do it two round trips, with two side trips to Egmont thrown in for good measure.
Just a beautiful road that lets the rider shine, as opposed to the most horsepower or lightest weight contest so prevalant in people's choices of bikes.
Be extra careful....the other lane is one mistake away.