Start in the carpark at Tunks Park Northbridge

Make your way to the Eastern Valley way by following the main traffi

Good Caltex petrol station here

2 sets of lights after the caltex turn left and then continue on straight onto Boundary street Chatswood

2nd set of lights turn right and from here in follow the main traffic route

From here on follow the signs to Hornsby

Keep following the main traffic as it dog-legs through this intersection

Turn right here (right hand turn lane just before a large park). This will prevent you riding through downtown Hornsby.

Turn left at this roundabout (currently the first one but there is some construction going on at the moment)

The road gets a little hairy here. Lots of bends, narrow and wet with moss. Be careful.

Jump on the ferry here...it's free!

Start following the signs to Hornsby (ignoring the turn-offs to the freeway)

Now you are just reversing the way you started.