NelsonHanmerPictonMotuekaBlenheimKaikōura
excellent water good fair poor not gradedOpen the full map →Map: LINZ Topo50 (LINZ Basemaps), CC BY 4.0

Good places to start

Where a public road reaches the water and you can walk a public bank, healthiest water first: insect life (the food trout live on) graded good or excellent, then the most public land beside the water within 1 km.

  1. Waiau Toa / Clarence River at a road bridge
    Fair waterFairly clearPublic bank
    More about this spot

    Road bridge · River · Public land beside most of the water within 1 km

    Insect life fair · usually fairly clear, about 2.8 m visibility · nitrate low · catchment mostly scrub

    See it on the map Bank private further along? Tap the property to ask the landowner

  2. Waihōpai River at the Waihopai Valley Road bridge
    Fair waterFairly clearMarginal strip
    More about this spot

    Road bridge · River · Marginal strip beside most of the water within 1 km

    Insect life fair (measured) · usually fairly clear, about 1.7 m visibility · nitrate low · catchment mostly scrub

    See it on the map Bank private further along? Tap the property to ask the landowner

  3. Severn River at a road bridge
    Fair waterFairly clearPublic bank
    More about this spot

    Road bridge · River · Public land beside most of the water within 1 km

    Insect life fair · usually fairly clear, about 2.2 m visibility · nitrate low · catchment mostly tussock

    See it on the map Bank private further along? Tap the property to ask the landowner

  4. Kowhai River at the State Highway 1 bridge
    Fair waterOften murkyPublic bank
    More about this spot

    Road bridge · Stream · Public land beside most of the water within 1 km

    Insect life fair (measured) · usually murky, about 0.7 m visibility · nitrate low · catchment mostly scrub

    See it on the map Bank private further along? Tap the property to ask the landowner

  5. Taylor River at the Hutcheson Street bridge
    Poor waterFairly clearPublic bank
    More about this spot

    Road bridge · Stream · Public land beside much of the water within 1 km

    Insect life poor · usually fairly clear, about 2.9 m visibility · nitrate low · catchment mostly pasture

    See it on the map Bank private further along? Tap the property to ask the landowner

  6. Yarra River at a road bridge
    Good waterClearPublic bank
    More about this spot

    Road bridge · River · Public land beside most of the water within 1 km

    Insect life good · usually clear, about 3.6 m visibility · nitrate low · catchment mostly tussock

    See it on the map Bank private further along? Tap the property to ask the landowner

  7. Ōpōuri River at the Opouri Road bridge
    Good waterClearMarginal strip
    More about this spot

    Road bridge · Stream · Marginal strip beside most of the water within 1 km

    Insect life good · usually clear, about 3.3 m visibility · nitrate low · catchment mostly native forest

    See it on the map Bank private further along? Tap the property to ask the landowner

  8. Ronga River at the Ronga Road bridge
    Good waterFairly clearMarginal strip
    More about this spot

    Road bridge · Stream · Marginal strip beside most of the water within 1 km

    Insect life good (measured) · usually fairly clear, about 2.7 m visibility · nitrate low · catchment mostly native forest

    See it on the map Bank private further along? Tap the property to ask the landowner

  9. Tinline River at the Maungatapu Road bridge
    Good waterClearMarginal strip
    More about this spot

    Road bridge · Stream · Marginal strip beside much of the water within 1 km

    Insect life good · usually clear, about 3.9 m visibility · nitrate low · catchment mostly native forest

    See it on the map Bank private further along? Tap the property to ask the landowner

  10. Cam River at the Awatere Valley Road bridge
    Fair waterFairly clearMarginal strip
    More about this spot

    Road bridge · River · Marginal strip beside most of the water within 1 km

    Insect life fair · usually fairly clear, about 2.2 m visibility · nitrate low · catchment mostly tussock

    See it on the map Bank private further along? Tap the property to ask the landowner

How we choose these places
  • A public road reaches the water. A road bridge, checked against LINZ’s legal road records (the topographic map also shows some private roads), an unformed legal road, or a road within 60 m of a lake.
  • The bank near it is public. A marginal strip, conservation land, a national park or a reserve beside at least a quarter of the water within 1 km, so you have somewhere to walk and fish.
  • There’s water in it in summer. MfE’s modelled low flow for a typical dry summer is at least 0.5 m³/s: enough water to fish. “Stream” is up to 3 m³/s, “river” above.
  • Healthiest water first. Insect life (MCI, the food trout live on), typical visibility and what the catchment above is mostly, from MfE’s national water quality records for 2016–2020, graded with the government’s NPS-FM bands. Modelled for every river; measured where a monitoring site is within 500 m, and the place says so. Lakes aren’t graded. Big braided and glacier-fed rivers grade lower naturally (shifting gravel and silty snowmelt keep insect life down); low nitrate and a mountain catchment tell that apart from farming.
  • It’s from national records, not a visit. A stream lined with willows can look dry from the air, a bridge can be closed, and a model can be wrong for one stream. If a place isn’t what it should be, tell us.

What you might catch in Marlborough

  • Brown trout
    Brown trout

    The wary, widespread trout of rivers and lakes, from the Waikato south.

  • Perch and coarse fish
    Perch and coarse fish

    Perch, tench and rudd in lowland lakes and ponds: easy fishing and a good start for children.

From NIWA and Fish & Game’s descriptions of where each fish lives, region by region; a particular river may not hold them.

Know the river you want?

The longest rivers in Marlborough

RiverLength, aboutPublic land beside the waterUnformed roads reaching itInsect lifeMap
Waiau Toa / Clarence River148 km79% (45 km marginal strip)22fairMap
Awatere River121 km33% (22 km marginal strip)39fairMap
Wairau River94 km33% (16 km marginal strip)31goodMap
Waihōpai River73 km60% (39 km marginal strip)11fairMap
Acheron River69 km89% (18 km marginal strip)3fairMap
Te Hoiere / Pelorus River61 km72% (3 km marginal strip)24goodMap
Branch River42 km84%3goodMap
Conway River40 km27% (8 km marginal strip)8fairMap
Leatham River39 km87%5goodMap
Omaka River34 km44% (9 km marginal strip)6fairMap
Alma River32 km100%7goodMap
Flaxbourne River30 km32% (5 km marginal strip)5fairMap
Waimā River30 km4%10fairMap
Ruakanakana Creek29 km0%2poorMap
Dillon River29 km100%–goodMap

Lakes

LakeAreaShore with public landMap
Lake Grassmere / Kapara Te Hau687 ha5% of 16.9 kmMap
Lake McRae66 ha100% of 3.9 kmMap
Lake Elterwater54 ha0% of 6.8 kmMap
Lake Rotorua44 ha100% of 4.1 kmMap
Lake Chalice42 ha100% of 5 kmMap
Bowscale Tarn25 ha100% of 2.4 kmMap
Argyle Pond20 ha0% of 3 kmMap
Island Lake16 ha100% of 2.5 kmMap

Before you go

  • Licence and rules. A Fish & Game licence, and the rules of the Fish & Game region you fish (seasons, limits and methods differ from water to water): Fish & Game licences and rules.
  • Check, Clean, Dry between every river and lake. How, from MPI.
  • Private bank. Where the bank is private, ask first. Find the block on the map, and we work out the postal address without showing you who owns it: you print one page, they scan the code and answer. The Outdoor Access Code on fishing.

Open the fishing map Hunting in Marlborough

Places to start: a public road meets the water (bridges checked against LINZ legal road records), public land is beside at least a quarter of the water within 1 km, and MfE’s modelled summer low flow is at least 0.5 m³/s (“stream” up to 3, “river” above). Rivers measured on a 100 m grid so braided rivers count once; lengths run about 10% short of official figures because the grid cuts across bends. “Public land beside the water” means a marginal strip, conservation land, a national park or a reserve within 25 m of the river (nature reserves and wildlife areas left out); a road “reaches” the water within 15 m. River names are LINZ’s 2018 pilot and not always official. Figures from 2026-10-05. Rivers and lakes: LINZ NZ River Name Lines and Polygons (Pilot) and NZ Lake Polygons (Topo 1:50k), CC BY 4.0. Roads: LINZ NZ Road Centrelines (Topo 1:50k) and Primary Parcels, CC BY 4.0. Summer low flow: MfE River flows, CC BY 3.0 NZ. Public land: LINZ Protected Areas, CC BY 4.0. Unformed legal roads: Herenga ā Nuku Aotearoa, CC BY 3.0 NZ.