Graeme Christie | Tuesday, 28 July 2026
With a polar front sitting north of the North Island, the Waikato was a bleak 8°C, hardly ideal, but perfect for a winter reconnaissance mission. The brown trout drop down the lower Waikato in winter, and there is a fishing competition in October where people seem to land some good fish; some proof out there. The browns do drop down our coastal rivers and head into the estuarine areas. The weekend was a "reccy," and I am calling it that now so I don't oversell myself later.
The lower Waikato is big water, an hour or so south of Auckland, and in winter it usually runs at its clearest. I did some homework first. A post on Facebook gave me some clues: at the end of a river bend, the current gets pushed up against the bank, and trout will sit against it. Bridges do the same job where the flow comes onto a pile or a bank. By adding stream mouths, I built a plan or at least a theory. I identified a list of spots on the map, and AI turned it into a neat file which I uploaded to Google Maps to explore.
The gauge at Rangiriri was reading 430 cumecs (a significant flow rate above the long-term mean of 361) and rising. The river was murky and getting muddier.
On the water I walked. There are stopbanks down that river with public foot access for miles, and you can cover a lot of likely water on foot without spooking anything. The rig was the HT 8wt with a medium intermediate line and a large heavy streamer, Ronan's Bruiser in dark colours on 15 feet of leader down to 2x. I focused on the willow edges, seams, and the slow stuff behind bends. One fish rose. Just the once, and not to anything of mine. Later, I sighted ripples in shallow areas; I am pretty sure they were koi carp.
No fish were caught. But pioneering or at least exploring often doesn't pay. I will console myself with this: maybe I'll target the carp next time. The local rule is catch-and-kill, as they are considered a pest, but I suspect they would be good sport as well.
There are always lessons. Today's is that the homework is starting to look like the fishing. I was inspired by fishing power-generating waters down south. We'll see if the river lets me back before the flow comes up any more. There is a stretch that deserves a long walk and some casting, and I might be a little early, meaning the trout may still be further up the river. I'll develop another map to test that theory. Given how large the river is, more like a flowing lake, a boat may also be part of the solution, as it could be the most sensible way to explore effectively. I am already looking forward to the next outing and refining my approach. Tight lines to you all.