Coodanup sits on the south-east edge of the Peel Inlet, the big shallow bowl behind Mandurah. The foreshore gives you expansive flats, channel edges and two boat ramps without leaving the bank — it's Perth's closest proper estuary-wade fishery. Whiting cruise the sand in summer, bream hold tight to any structure or weed edge, flathead ambush on the drop-offs, and blue swimmer crabs thicken up from late January once the season is in full swing.

Wade the flats at first light on a rising tide with small surface lures or lightly weighted prawn baits for yellowfin whiting. Fish the channel edges and deeper pockets for bream and flathead on light gear with soft plastics or bloodworms. For crabs, drop nets on the edge of the weed beds off the bank or a boat ramp and check every 20 minutes. Cobbler feed at night over muddy bottom — worm or prawn baits fished on a light running sinker.

Yellowfin and sand whiting (summer flats), King George whiting on cleaner sand patches, black bream (structure and weed edges), flathead (channel edges), herring, cobbler (after dark), tailor in autumn, and mulloway in the deeper channels. Blue swimmer crabs are the headline from December through April.

The Peel-Harvey blue swimmer season runs 1 December – 31 August, minimum size 127 mm across the shell — bring a measure and check limits before you set nets. The inlet is shallow and muddy; light gear beats heavy tackle every time. Wind dictates everything here — if the easterly is up, fish the west-facing banks and vice versa. Check DPIRD for current algal bloom advisories and cobbler closure dates.