Stillwater · Silurian Mudstone Shale · Wales / Cambrian Mountains (Elan Valley uplands, Rhayader)

Llyn Carw

A dark oval upland lake set in open grass moorland under a partly cloudy sky, with distant hills on the horizon.

Carw is further out on the same moorland ticket as Claerwen and Gynon, and it's got a reputation — modest, local, but real — for wild browns that run bigger than you'd expect from a lake this size, fish pushing past the pound for anyone who puts the legwork in.

Fair · Trout
Minkie · 6-10
Fairlive now
Good drifting conditions on Llyn Carw
Good wave on — drift country. A useful wave. Work the productive shore.
55% confidence

Llyn Carw is often best in spring through autumn.

What moved it
  • WindN 7 km/hLight breeze · Gusts to 13 km/h
Today's fly
Minkie
Minkie6-10
Retrieve, sub-surface
Conditions on the water
Estimate
Wind
Light breeze · Gusts to 13 km/h
N 7 km/h
N
N
from the north
WaveRipple
Water temp9.1°C
Air temp12°C
CloudOvercast
Pressure1016 hPa
Rain · recent0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

How to fish it · for Trout
When
Late April–June; evening rises through summer
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A

Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.

Plan B

If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.

Watch for

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

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14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 4 as a supporter.

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14-day free trial. Cancel anytime.

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Heather FlyHatch
2
2
Daddy Long LegsHatch
2
3
2
Claret DunHatch
2
3
2
Murrough (Great Red Sedge)Hatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Trout fly box
Bays & launches · 1
Day ticket via Rhayader and Elan Valley AA (covers Claerwen)Access varies
Remote moorland lake above Claerwen with wild browns to 1lb+, fly only.
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What's coming
Plan ahead
5-day outlook
Condition match
73%
Cloud50%
Wind100%
Temp60%

A good match for Llyn Carw — most conditions are close to what it fishes best in.

Other water nearby · 5
Gallery · 2
  1. A dark oval upland lake set in open grass moorland under a partly cloudy sky, with distant hills on the horizon.
    Llyn Carw
  2. Terrain map of the venue
    Terrain map
About this water

Carw is further out on the same moorland ticket as Claerwen and Gynon, and it's got a reputation — modest, local, but real — for wild browns that run bigger than you'd expect from a lake this size, fish pushing past the pound for anyone who puts the legwork in. There's no shortcut to it; you earn the fishing with the walk. Fly only, same permit that covers the reservoir and the rest of the club's natural lakes, which makes it an easy add-on to a Claerwen day if you're willing to keep going a bit further into the hills. Bring a map. The satisfaction here is roughly proportional to how far you're prepared to walk.

  • Lake
  • Silurian mudstone shale
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Buzzer is in its seasonal window, boosting the chance of targeted feeding.
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