Apollo Bay itself falls into the Colac and Remote Central Zone licence areas. Mixx FM (Colac) and Flow FM (RCZ) have repeaters at Marengo, though the latter is off air. ABC Radio Melbourne also has a repeater co-located at the Flow FM site despite being outside the Melbourne licence area - presumably because Colac itself is served by 774. Couldn’t tell you if 1602 from Warrnambool makes it across to the Bay.
Melbourne stations do, of course, make it down to the Bay. If all licensed services were active, you’d have an interesting mix of operators down there!