Tal-y-llyn Lake, also known as Talyllyn Lake, Llyn Mwyngil or Llyn Myngul is a large glacial ribbon lake formed by a post-glacial massive landslip damming up the lake within the glaciated valley. It is situated at the foot of Cadair Idris, in the Snowdonia mountain range of Gwynedd, Wales.
The River Dysynni flows from the lake, through the village of Abergynolwyn, and discharges into the sea north of Tywyn.
The Anglicised name for the lake, Tal-y-llyn Lake, is a tautology as its literal meaning is “End-of-the-lake Lake”.
The narrow gauge Talyllyn Railway has its eastern terminus at nearby Abergynolwyn, within the parish of Tal-y-llyn, the hamlet at the end of the lake.
Talyllyn is a natural 220-acre, shallow, Brown Trout Lake nestling in the southwest corner of the Snowdonia National Park and below the peak of Cader Idris. It forms the headwater of the river Dysynni that flows westwards for 10 miles before entering Cardigan Bay just north of Tywyn. Talyllyn provides Boat; float tube and bank fishing for a good head of wild brown trout supplemented by regular stockings of super quality browns, many from our own progeny. Fly-fishing only is allowed and there is no anchoring of boats. The lake sees runs of sea trout and salmon as the season progresses. There are 14 boats with outboard engines plus 2 Wheelyboats for hire. Bank fishing is on the south shore only. Float tubes can be launched from the car park. Adjacent to the lake is the renowned Tynycornel Hotel providing accommodation, meals and bar facilities to anglers. There is a small tackle shop, freezer facilities, drying and rod room.
Wild and stocked brown trout. Sea trout, grilse and salmon.