Head to the end of the North-Western Motorway. Turn left off the motorway and follow State Highway 16 towards Helensville. Keep driving on SH16 through a town called Kumeu and then a small village called Waimauku. Approximately 5-10 minutes past the town of Kumeu turn left onto Restal Rd when you see the signage for the Woodhill Mountain Bike Park. Follow the signs from there (approximately 1km).