This polyline dataset represents the areas for recreational boats to Steer Clear of shipping in Port Phillip. Port Phillip Bay is a popular place for boating, fishing, yachting and other aquatic pastimes - but it is also a gateway for commercial shipping. This means big ships such as container ships, car carriers and cruise ships are using the bay 24 hours a day, 7 days a week, going to and from the ports of Melbourne and Geelong.

This point layer contains Aids to Navigation to assist in providing safe shipping in Port Phillip. This dataset includes Aids to Navigation managed by the Port of Melbourne. The Aids to Navigation mark the shipping channel and also assist in marking the centre lines and extremities of the channel in which ships must navigate. These points are NOT to be relied upon for navigational purposes.