The Unpopular Opinion

Experienced Murray anglers will tell you that a moderate rise — not the catastrophic floods that inundate towns, but the seasonal rises that push water onto the floodplain edges — produces some of the best Murray cod fishing of the year. The logic is straightforward: floodwater carries terrestrial food sources into the river system, cod move onto the flooded margins to exploit them, and you reach fish that have not seen a lure in months.

The unpopular part is that fishing a rising river in brown water from a boat with logs moving through the current is genuinely demanding. You need to know the river, know the structures, and trust your instincts about what is under murky water you cannot see through. Most anglers do not bother. The ones who do often have it to themselves.

What Changes When the River Rises

Water colour goes from clear-green to dark brown. Visibility drops to zero. Current speed increases. Log and debris movement through the run requires constant attention. And fish behaviour changes: cod that spend clear-water months sitting tight against specific structures move more freely onto the flooded edges, and the feeding trigger is active in a way that is different from the cautious daytime feeding of low-water summer fish.

The Method

Work the flooded timber on the margins — the ghost gums and red gums that stand in two metres of water where there was dry ground last week. Large, noisy surface lures worked slowly along the wood edge at dawn produce aggressive strikes from cod that are actively patrolling the edge. The take is different in flood conditions — faster, more committed, less of the tentative follows that characterise clear-water fishing.

On the trip this account is based on: four cod between 55 and 87cm in a single morning session on a section of river between Echuca and Cohuna that I had entirely to myself. The 87cm fish took a large surface popper two metres from the bank in water that was on a red gum's lower branches.

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Reading the River: When Flood Means Fish

The first skill flood season demands is learning to read water that looks nothing like the Murray you know. That crystal-clear pool where you've watched cod cruise the timber for years is now a brown torrent carrying tree branches and debris. The key is understanding that beneath this chaos, the river's structure remains largely intact. Developing skills in reading flood water becomes essential for success in these challenging conditions.

Experienced flood fishermen target specific areas: the inside bends where current slackens and creates back-eddies, the upstream sides of major snags where cod shelter from the flow, and particularly the flooded timber on the margins. A quality fish finder like the Humminbird Helix 7 CHIRP GPS G3 becomes essential gear, helping you identify structure through the murk that would be invisible to the naked eye.

The magic happens in that first metre of water above normal summer levels. Here, yabbies, terrestrial insects, and small mammals that normally live safely above the waterline become easy pickings. Cod know this, and they'll push shallow to hunt — sometimes in water barely deep enough to cover their backs.

Essential Tackle for Flood Conditions

Standard Murray cod setups need modification for flood fishing. Heavy braid — 50-65lb — replaces your usual 30lb because you're fishing around moving timber and need the strength to muscle fish away from snags. The Shimano Sustain FI 4000XG paired with a heavy-action rod handles the demands of casting large lures into wind and current while providing the backbone needed for flood conditions.

Lure selection changes dramatically. Forget about finesse — flood cod respond to big, loud presentations. Spinnerbaits in ½ to ¾ ounce weights push through the current and create vibration that cuts through the murky water. Surface lures like Bassman Spinnerbuzz or large poppers work brilliantly in the back-eddies where the water calms. The key is lures that create disturbance and can be felt rather than seen.

Jerkbaits deserve special mention for flood fishing. Large suspending lures like the Jackall Squirrel 79 or Lucky Craft Pointer 128 can be worked slowly through the current, pausing in the strike zone longer than faster-moving lures. Work them with sharp jerks followed by long pauses — the erratic action triggers aggressive strikes from cod holding in ambush positions.

Safety: The Non-Negotiable Foundation

Flood fishing carries genuine risks that demand serious preparation and careful consideration when planning remote fishing trips. The first rule: never fish alone. The combination of increased current, floating debris, and limited visibility creates hazards that can escalate quickly. Always fish with a partner and maintain constant communication.

Your boat setup needs modification too. Carry a long-handled net — debris makes landing fish challenging, and you need reach to clear obstacles. Pack emergency equipment: flares, EPIRB, first aid kit, and enough fuel for twice your planned trip duration. River conditions can deteriorate rapidly, forcing longer return journeys or emergency shelter seeking.

Weather monitoring becomes critical. The Bureau of Meteorology's river height data should be checked obsessively. A minor rise upstream can create major flow increases downstream within hours. Establish clear exit strategies and stick to them — the fishing might be phenomenal, but getting caught in a rapidly rising river can be fatal.

Location Strategy: Where Fish Go When Water Rises

Understanding Murray cod behaviour during floods requires thinking like a predator. Cod don't randomly distribute across the expanded water area — they position strategically to maximise feeding opportunities while minimising energy expenditure.

Creek mouths become feeding highways. Smaller tributaries funn