Hi Knackers, Bellamore is not far west of Ceduna. Take the Denial Bay road and continue on towards Nadia Landing - this will take you through to Davenport Creek, but before you get there, a track off to the right will take you over the sandhills to Bellamore. Getting in is not the easiest, but getting out can be very tricky with a very steep climb over the sandhill.
Some very interesting information, I've only ever caught 2 mulloway, landed one, i recently tried locally but had no luck, it seems the methods, everyone has said seem to be the same everywhere but the times of year differ, in W.A (where i caught mine) it was late spring through summer, here in vic it april through winter, the one common sign is slack water.