Between 1946 and 1952 the track varied several times. These are discussed below:
1946 Prado, av. de La plage; roughly of T form head on the beach (2.73 miles)
1947 Prado, av. de la Plage; with a much longer section alongside the beach
1949 Parc Borely, around the race track and the Garden
1950 Parc Borely, much faster with a slow turn removed (see below)
1951/52 Parc Borely, the slow corner is back, but taken on the return part of the lap. In 1952 that corner was banked (surlévé)