Stillwater · Ordovician Volcanics · Wales / Snowdonia (Ardudwy hills, Harlech)

Llyn Eiddew Bach

A grey, still upland lake bordered by tussocky moorland grass and a low rocky outcrop, under an overcast sky.

Eiddew Bach is the smaller of two llyns strung along the hills above Talsarnau, a modest wild-brown water that doesn't get much attention next to its bigger neighbours.

Fair · Trout
Minkie · 6-10
A respectable few hours, if you choose your moments
Good wave on — drift country. A useful wave. Work the productive shore.
45% confidence
limited data

Llyn Eiddew Bach is often best in spring through autumn.

What moved it
  • WindE 7 km/hLight breeze
Today's fly
Minkie
Minkie6-10
Retrieve, sub-surface
Conditions on the water
Estimate
Wind
Light breeze
E 7 km/h
N
E
from the east
WaveRipple
Water temp
Air temp9°C
CloudOvercast
Pressure1023 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
May–August; evening rise in settled weather
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. Keep a sedge-style dry or emerger on a short leader for the evening rise.
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. Keep a sedge-style dry or emerger on a short leader for the evening rise.

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

Sedge should come on through the afternoon as the water warms.

Bank

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

Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 5 with Pro.

Start free trial

14-day free trial. Cancel anytime.

Through the year
0–3 scale · August 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 Artro & Talsarnau AAAccess varies
Small, unstocked wild-brown tarn in the hills above Talsarnau.
Visit official site ↗
What's coming
Plan ahead
5-day outlook
Condition match
73%
Cloud50%
Wind100%
Temp60%

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

Other water nearby · 5
Gallery · 2
  1. A grey, still upland lake bordered by tussocky moorland grass and a low rocky outcrop, under an overcast sky.
    Llyn Eiddew Bach
  2. Terrain map of the venue
    Terrain map
About this water

Eiddew Bach is the smaller of two llyns strung along the hills above Talsarnau, a modest wild-brown water that doesn't get much attention next to its bigger neighbours. There's no stocking here — what you catch is what the lake has grown itself, which usually means modest sizes but honest fish, willing enough on a warm evening when the wind lies down. It's a walk-in water, no boat, no fuss, the kind of place that rewards showing up rather than researching. Bring a small box of wets and don't expect company. The Ardudwy hills keep their llyns quiet, and Eiddew Bach is quieter than most.

  • Lake
  • Ordovician volcanics
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Lake Olive is in its seasonal window, boosting the chance of targeted feeding.
Related guides
Casting instructors near here
Booking & contacts