122
Llyn Du bach
Type
Lake
Species
Brown trout
Low alkalinity
High alkalinity indicates water fertility and can signal the presence of larger trout. Fish in alkaline waters have a wider variety of invertebrates to feed on.
Shallow
The depth of a lake has significant impacts on its ecology. Reduced heat and light in deep lakes inhibit algal growth.
Low shoreline complexity
A lake with a high shoreline complexity will have numerous bays, points and peninsulas.
Mid elevation
Lakes at a higher altitude can take longer to warm up during the season and may not fish well until summer.
Very small
Larger lakes with good spawning often contain lots of smaller trout. Smaller lakes with limited spawning can produce larger trout.

Llyn Dubach sits above the town of Blaenau Ffestiniog, beyond the slate tips of some of the oldest quarries in the region. Now the quarries have long been silent Llyn Dubach has developed its character - particularly during heavy rain when the water can thunder down the hillside into the lake! Though surrounded by the remains of heavy industry and not too far from civilisation, this seven-acre lake offers excellent sport fishing in dramatic surroundings.

Created to work the nearby Graig Ddu mill, the lake betrays its origins with a large stone structure that divides into two distinct parts. Weeds and lilies partly obstruct the southern edge of the minor water. Both features can make for interesting choices in targeting fish. The northern edge of the larger water backs onto a rising hill that can make casting more challenging and shelter the lake from a northeast wind. The water is otherwise unrestricted all the way around, though the awkward nature of the bank means wading is a preferred option.

Home to lots of free-rising eager trout, Llyn Dubach is an excellent place to experiment with different or little-used tactics. Try a pair of traditional flies drawn rapidly in the shallower water, and if the wind changes, switch quickly to dries fished on the surface.

The best way to reach Llyn Dubach is on foot from the town of Blaenau Ffestiniog to the west. A choice of two footpaths easily seen on OS maps will take you to the smaller of the two lakes, and both take approximately 30 minutes to walk. The paths are not well travelled and steep in places, so care should be taken.

Explore nearby

12 waters within 5 miles of Llyn Du bach

Llyn y Manod

Gwynedd, Wales

Llyn y Manod lies roughly 6 kilometres inland from the Welsh coast, set among the mid-altitude moorland of Gwynedd. This ...

lake Brown trout

Llynnau Barlwyd

Blaenau Ffestiniog, Gwynedd

Two lakes, one ten acres, the other five. Both lakes are thirty-minute walk from the lay-by at the top of the Crimea Pa ...

lake Brown trout

Llynnau Gamallt

Blaenau Ffestiniog, Gwynedd

Llynnau Gamallt lie on the western side of the Migneint between Ffestiniog and Bala, set among open hill moor. This is a ...

lake Brown trout

Llyn Morwynion

Blaenau Ffestiniog, Gwynedd

Situated about 200 metres above the lay-by on the B4391 road to Bala from Ffestiniog. Access can also be gained from Dub ...

lake Brown trout and Rainbow trout

Llyn Cwmorthin

Blaenau Ffestiniog, Gwynedd

Fairly easily accessible on foot, ideal for those looking to wet a line for a couple of hours. Holds a good stock of wil ...

lake Brown trout

Llyn Dubach Y Bont

Blaenau Ffestiniog, Gwynedd

Even the smallest of waters may tempt the imagination of curious anglers. One such unassuming little lake is Llyn Dubach ...

lake Brown trout

Llyn Conglog

Blaenau Ffestiniog, Gwynedd

A short distance from the summit of Allt Fawr lies Llyn Conglog. At 2000 feet, this remote eight-acre lake is worth a vi ...

lake Brown trout

Llyn Cwm Corsiog

Blaenau Ffestiniog, Gwynedd

Llyn Cwm-corsiog lies above Tanygrisiau, set among open upland slopes at about 520 m. It is a very small, shallow water ...

lake Brown trout

Llynnau’r Cwn

Blaenau Ffestiniog, Gwynedd

Llynnau’r Cwn, or “Lakes of the Hound”, lie to the north west of Blaenau Ffestiniog, in Snowdonia National Park. Compris ...

lake Brown trout
Llyn Cwm Foel 10

Llyn Cwm Foel

Blaenau Ffestiniog, Gwynedd

The dam was breached in the early 90’s for safety reasons, it has since been partly rebuilt to supply a water turbine, b ...

lake Brown trout
Llyn yr Adar 11

Llyn yr Adar

Blaenau Ffestiniog, Gwynedd

Sitting below the northern slopes of a mountain called Cnicht, lies LLyn yr Adar, in the Snowdonia National Park. Porthm ...

lake Brown trout
Llyn Llagi 12

Llyn Llagi

Blaenau Ffestiniog, Gwynedd

Llyn Llagi lies in open hill country, set below steep cliffs. It is a very small loch of roughly five hectares, shallow ...

lake Brown trout

To keep exploring,
sign up or sign in

Sign up
or

To keep exploring,
sign up or sign in

Sign up
or