The stretch of coast and estuary around the Waimanu Valley has been fished for hundreds of years — first by Māori working the rich kai moana of the Kaipara and east coast harbours, then by settlers who quickly worked out that this part of New Zealand was unusually productive water. It still is.
Snapper
Snapper is the most sought-after table fish in the northern North Island, and the waters off the east Northland coast hold good numbers. The key season runs from October through April when snapper move inshore to feed. Rock fishing from the headlands around Mangawhai can produce good results on soft baits; boat fishing over the reefs further out is more reliable for larger fish. The current legal minimum size is 30 cm with a bag limit of 9 per person per day.
Kahawai
Kahawai are arguably the most underrated fish in New Zealand. They fight hard, they’re plentiful, and they’re genuinely delicious when bled immediately on landing and kept on ice. Smoked kahawai is exceptional. Watch for birds working the water in the surf zone at Mangawhai Heads — they’re the giveaway for kahawai below.
Estuary Fishing: Flounder and Mullet
The Mangawhai Harbour estuary holds good populations of sand flounder, best targeted at night by wading with a torch — the light reflects from their eyes and they’re surprisingly easy to spot. Grey mullet work the shallows at high tide; a small bread-bait float rig is the traditional method.
Freshwater: Trout in the Streams
The hill streams feeding into the Waimanu Valley hold small populations of brown trout. They’re not large fish and the fishing is technical — tight, bush-covered water requiring short, accurate casts — but for fly fishers who enjoy that challenge, it’s very satisfying. A freshwater fishing licence is required, purchased online through Fish and Game New Zealand.
The Tide Matters Most
Fish the last two hours of the incoming tide and the first hour of the outgoing, and you’ll be fishing when the fish are feeding. A medium-heavy rod, 6000–8000 reel, 30 lb braid with a fluorocarbon leader, and a selection of soft baits will cover most surf and rock situations. The rest is details.