Back to Adelaide
Glenelg is a beachside suburb of Adelaide. There is a good "promenade" going for quite a few km approx northwards. Its good for running and offers a few piers and other attractions to look at.
Start at the Glenelg Pier and head North or South either along the beach or the footpath.
Run back the way you came, alternating between beach and path running. You pass some very nice beachfront homes, and there is usually a very fresh breeze blowing. Distance is about 6-7 kilometers.