From cycle2max:

Kariong
start point: 2nd set of lights, stationary start
the route: it goes from West Gosford to Kariong
end point: 1st set of lights at the top just before the shell

total distance 2.36 mi 3.8 km
total ascent 640 ft 195 m
starting altitude 33 ft 10 m
finishing altitude 672 ft 205 m

average gradient (%) 4.8

surface type: sealed hot mix


Pie in the Sky
start point: Intersection of Brooklyn Road, rolling start
the route: Old Pacific Hwy North of Sydney
end point: Pie in the Sky

total distance 2.46 mi 3.95 km
total ascent 755 ft 230 m
starting altitude 0 ft 0 m
finishing altitude 754 ft 230 m

average gradient (%) 5.6

surface type: Bitumen