HomeNelson – MarlboroughNelson Marlborough: Where to fishCobb River

Cobb River


The Cobb river is a very attractive and remote wilderness river that drains from Lake Cobb into the man-made Cobb Reservoir.

Fish type Brown and rainbow trout
Situation The Cobb is an attractive river in a bush covered valley. It winds across tussock flats and between stands of beech forest and is a pleasure to fish for those who are prepared to walk.

Access map

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The Cobb River is a beautiful river to fish running over a shingle and gravel bed between bush covered hills. It contains mostly rainbow trout which can be easily spotted in the clear runs and pools. Some deep slow moving pools can hold a number of fish that tend to cruise around in search of food.

The Cobb River is easy to fish though requires some effort as there are no roads along it and anglers must walk a track that runs along much of its length.

Fish numbers and size Both the Cobb Reservoir and the river are well stocked with fish that average around 2-3lb.

Access to the Cobb River requires some walking as the road that follows the southern shore of the reservoir stops at the head of the lake. A good track (with DOC huts) follow the river upstream however.

From Takaka, take the Cobb Dam road which follows the southern shoreline of the Cobb Reservoir. There is a car park at the end for those wishing to fish either the lake or the Cobb River. This is a very narrow steep and winding unsealed road and care must be taken when driving it. See the access map.

Recommended lures

Small nymphs such as Hare and Copper, Pheasant Tails and Caddis imitations all work well in sizes 14 or smaller when fishing either the river of the lake edges to cruising trout.

Dry flies:
Small flies such as Hardies Favourite, Dad's Favourite, Royal Wulff and March Brown all work well at all times of the day. Fish bushier flies over the faster water.

Wet flies:
Small wets such as Greenwell's Glory, Twilight Beauty and March Brown work well when fished sub-surface. These flies are great when fishing the evening rise and seem particularly attractive to the rainbow population.

Spinners: Small bladed spinners (Mepps or Veltic) fished into the faster water or through the deep pools are best for this small river. As there are rainbow trout in this  system use red and flashier colours when spinning.

Applicable to The Cobb River
Region Nelson/Marlborough
Season 1 October - 30 April
Methods Artificial fly, spinner
Bag limit Anglers are still allowed to keep two fish but only one fish is allowed to exceed 500mm in length
Size limit (cm) None

Other fishing waters of the region


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