Llyn Brenig sits high in the Denbighshire hills on the North Wales/Conwy border, and it has one of the strongest reputations of any stillwater trout fishery in the UK, not just in Wales. With roughly 14 miles (23km) of accessible shoreline and a genuinely large body of water, it offers both bank and boat fishing across a variety of drifts and features that suit beginners and competition-standard anglers alike.
The fishery is stocked with rainbow trout and holds a good head of brown trout too, with fish regularly caught well into double figures during the season. Brenig has hosted national and international fly fishing competitions over the years, which says as much about the quality and consistency of its fishing as anything else could.
The Visitor Centre
Brenig’s visitor centre is a genuine part of what makes it worth the trip even beyond the fishing itself – a café, a well-stocked fishing shop for tackle and permits, and full facilities make it an easy day out rather than just a fishing venue. Full permit types, boat hire, and current prices are available directly from Llyn Brenig’s official website.
What to Expect
Brenig fishes well across the season from March/April through into autumn, with fly fishing the dominant method – both bank fishing from a wide range of accessible platforms and drifting from a boat across open water. Streamers and lures work well early and late season when fish are higher in the water; smaller nymphs and dries come into their own as the season warms.
If you’re new to stillwater trout fishing, our guides on rainbow trout and spinning for trout cover the basics that apply here, alongside fly tactics if you’re bringing a fly rod for the first time.
Getting There
Llyn Brenig is easily reached from the A5 between Betws-y-Coed and Corwen, making it a practical stop for anglers travelling across North Wales. It sits within easy reach of other North Wales trout waters covered in this series, including Tan y Mynydd and Llyn Crafnant.
Gear that fits this
For anyone buying with this in mind, a few sensible picks.
On the fly lines side, Airflo Superflo Mini Tip Fly Line 6' Fast Int. Tip WF7, Scientific Anglers Amplitude Smooth MPX Weight Forward Fly Line #5 and Wychwood Connect Series 2 Little Dipper 5ft Sink Tip Fly Line #7.
Leaders and tippet: Frog Hair High Performance Tippet 30m Spool 2X/11.1lb, Airflo Tactical Polyleader Ultimate Dry 8ft Floating and Orvis Mirage Flurocarbon Tippet 1x 11.8lb 30m.
For reels, Airflo Switch Black Cassette Fly Reel #4/6, Lamson Liquid S-Series Day Break 3 Pack Fly Reel and Lamson Guru S-Series Olive Green Fly Reel are all worth a look.
Rods worth adding: Guideline Elevation Nymph Single Handed Fly Rods 10'6'' #3, Guideline Embrace Salmon Fly Rod and Reel Kit #8/9 13' and Shakespeare Oracle 2 Stillwater Fly Rod 9ft #6 4pc.
Sarah Marsh came to fly fishing through her father, who kept a rod on a small syndicate water in Devon. She spent her teens fishing stocked reservoirs and gradually worked her way toward wild fish on moving water – first on rain-fed freestone rivers in Wales, then on the Hampshire chalk streams she now considers home water.
She holds a level 2 APGAI fly casting qualification and guides informally on the River Test and, from June to September, on a private beat on the River Tay for Atlantic salmon. Her personal best brown trout came from the Itchen at 4lb 1oz; she’d sooner not talk about the salmon that came off at the net last August.
At The River Bend, Sarah writes the game fish species guides, fly fishing technique articles, and the legal content covering trout and salmon regulations.
Covers: Brown trout, rainbow trout, sea trout, Atlantic salmon, fly fishing, chalk streams, Scottish rivers, close season and regulation articles