Broulee, North Head to Mossy Point Cycleway is a great flat route with a mixture of shared pathway and on road riding. Park in Heath Street near the Surf Club to begin your journey but really, you can start at any point.
Travel south along the back of the sand dunes of Bengello Beach, a renowned surf beach for professionals and locals. This is where you may encounter wildlife - kangaroos, echidnas, wallabies, or goannas. At the end is the airport, where you may like to enjoy some extreme adventure - skydiving! Turn around and head north passing the start point, continuing to Mossy Point; a great place to stop to enjoy much needed refreshments.
Hit the trail for the final leg past popular Broulee Beach back to the beginning. You can enjoy a swim and, if you brought a camera, there is a great lookout near the carpark.