"The Southern Expressway is Australia's, and the world's, first fully reversible one way freeway-expressway.
Originally proposed as 'Noarlunga Freeway', it was built as a corridor to relieve heavy traffic from the major arterial, Main South Road in Adelaide's south. The expressway was built in two stages—the first completed in late 1997 and the second was completed in 2001. The total cost of the arterial was A$$76.5m, and it is 21 km in total length. Apparently, there is no provision for the future duplication of the expressway. The Southern Expressway is signed as M2." More
See photos of the expressway Here
This is an easy cache that is best approached by pushbike or on foot.
***This cache has swaps based on a transportation theme.***
Please, try and keep swaps based on any form of transportation, eg. cars, planes, trains, boats ... rollerskates, etc.
NB: There is no provision for car parking anywhere near GZ.
Do not park on the expressway!