Eigiau is the famous one for the wrong reasons — the dam burst in 1925, killed sixteen people in Dolgarrog below, and a hundred years on the lake remains shallow and broad rather than the deep impoundment it used to be. Forty-nine hectares of wild brown trout in shadow of Pen Llithrig y Wrach, plus a small relict Arctic char population (transferred from Llyn Peris before the burst). Roughly a mile and a quarter's walk in. Bank only, two-fish limit.
A patient day, if you fancy it
Useful ripple, fishable wave. Take your time — read the water before you cast.
34% confidence — limited data
Live now
Conditions on the water
Trends shown where the gauge supports them
Wind
SW 32 km/h
Fresh breeze
Wave
60 cm wave
Water temp
—
No reading
Air temp
11°C
Cloud
Overcast
Pressure
990 hPa
Rain · 24h
0.0 mm
No rain
Some readings unavailable — check directly before fishing.
How to fish · for brown trout
The brief
When · where · method · kit
How to fish it · for brown trout
When
The buzzer is on. Sedge may also come into play as the day warms.
Where
Work Dry Fly on the bob and Terrestrial on the point.
Today's tactical plan
The plan
Plan A · Plan B · what to watch · bank or boat
The plan
Plan A
Work Dry Fly on the bob and Terrestrial 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
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
Boat — at anchor
Windy conditions suit anchoring in productive areas rather than open-water drifting.
Hatches & runs
What's on, when
Twelve months at a glance
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
1
2
1
Lake OliveHatch
1
2
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Today's fly · curated pack
Top pattern + the box
6 patterns from this venue's curated pack
Evidence
Why today scores what it does
The factors driving today's verdict
Why this score
- Wind conditions (windy) are not ideal for this water.
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
Access · 1
Check the current rules, permits and access before travelling.
Day ticket via Fishing PassportDolgarrog Fishing Club (via Fishing Passport)
Wild brown troutArctic char / torgochFlySpinBait
120-acre Carneddau lake — wild brown trout plus relict Arctic char. Roughly 1¼-mile walk in. Bank only. 2-fish limit. Historic 1925 dam-burst site.
Day ticket via Dolgarrog FC Passport listing. 2-fish bag. 1.25-mile walk in. EA/NRW rod licence required.
Arrange access →About this water · Lough note · 4 min read
Llyn Eigiau · profile
Who this water suits
Strengths · watch-outs · best for
About this water
Llyn Eigiau, on the water
Field guide · contributor-editedLlyn Eigiau · about
What this water is
Background · character · contributors
About this water
Eigiau is the famous one for the wrong reasons — the dam burst in 1925, killed sixteen people in Dolgarrog below, and a hundred years on the lake remains shallow and broad rather than the deep impoundment it used to be. Forty-nine hectares of wild brown trout in shadow of Pen Llithrig y Wrach, plus a small relict Arctic char population (transferred from Llyn Peris before the burst). Roughly a mile and a quarter's walk in. Bank only, two-fish limit.
- Lake
- Ordovician volcanics sediment
Llyn Eigiau · directions
How to get to the water
Directions
Llyn Eigiau
Eigiau is the famous one for the wrong reasons — the dam burst in 1925, killed sixteen people in Dolgarrog below, and a hundred years on the lake remains shallow and broad rather than the deep impoundment it used to be.
Species
A patient day, if you fancy it
Useful ripple, fishable wave. Take your time — read the water before you cast.
34% confidence — limited data
Conditions
Wind
SW 32 km/h
Fresh breeze
Wave
60 cm wave
Water temp
—
No reading
Air temp
11°C
Cloud
Overcast
Pressure
990 hPa
Rain · 24h
0.0 mm
No rain
Some readings unavailable — check directly before fishing.
Condition match
41%
Cloud70%
Wind30%
Temp25%
Conditions are away from this venue's sweet spot — it usually fishes best in ripple wind with mixed skies.
How to fish it · for brown trout
When
The buzzer is on. Sedge may also come into play as the day warms.
Where
Work Dry Fly on the bob and Terrestrial on the point.
The plan
Plan A
Work Dry Fly on the bob and Terrestrial 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
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
Boat — at anchor
Windy conditions suit anchoring in productive areas rather than open-water drifting.
Why this score
- Wind conditions (windy) are not ideal for this water.
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
1
2
1
Lake OliveHatch
1
2
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Access · 1
Check the current rules, permits and access before travelling.
Day ticket via Fishing PassportDolgarrog Fishing Club (via Fishing Passport)
Wild brown troutArctic char / torgochFlySpinBait
120-acre Carneddau lake — wild brown trout plus relict Arctic char. Roughly 1¼-mile walk in. Bank only. 2-fish limit. Historic 1925 dam-burst site.
Day ticket via Dolgarrog FC Passport listing. 2-fish bag. 1.25-mile walk in. EA/NRW rod licence required.
Arrange access →Directions
About this water
Eigiau is the famous one for the wrong reasons — the dam burst in 1925, killed sixteen people in Dolgarrog below, and a hundred years on the lake remains shallow and broad rather than the deep impoundment it used to be. Forty-nine hectares of wild brown trout in shadow of Pen Llithrig y Wrach, plus a small relict Arctic char population (transferred from Llyn Peris before the burst). Roughly a mile and a quarter's walk in. Bank only, two-fish limit.
- Lake
- Ordovician volcanics sediment
About this water · Lough note · 4 min read
Eigiau is the famous one for the wrong reasons — the dam burst in 1925, killed sixteen people in Dolgarrog below, and a hundred years on the lake remains shallow and broad rather than the deep impoundment it used to be. Forty-nine hectares of wild brown trout in shadow of Pen Llithrig y Wrach, plus a small relict Arctic char population (transferred from Llyn Peris before the burst). Roughly a mile and a quarter's walk in. Bank only, two-fish limit.
Other water nearby · 5