Llyn Cau is a remote mountain lake nestled in the Cader Idris range, offering a dramatic alpine setting and challenging access that rewards dedicated anglers with wild brown trout in pristine surroundings. The lake's clear, nutrient-poor waters and exposed location make it a technical fishery requiring skill and adaptability. This is a true wilderness fishing experience for those seeking solitude and the character of traditional Welsh lake fishing.
The close season on Llyn Cau runs 15 March – 15 June. Effective methods include Fly, Lure.
Area
13.5 ha
County
Gwynedd
Type
Lake
Access
Free Fishing
Close Season
15 March – 15 June
Best Fishing Methods at Llyn Cau
Recommended methods for Llyn Cau include Fly, Lure. The most effective approach will depend on conditions, season and target species.
FlyLure
Frequently Asked Questions
What fish can I catch at Llyn Cau?+
Species information for this water is available to PiscaMaps members.
How do I get a permit for Llyn Cau?+
Fishing at Llyn Cau is free with a valid Environment Agency rod licence. No day ticket or club membership is required.
When is the close season at Llyn Cau?+
The close season at Llyn Cau is 15 March – 15 June. Fishing is not permitted during this period under EA byelaws.
What are the best methods for fishing Llyn Cau?+
Recommended methods include Fly, Lure. The most effective approach will vary by season and target species — adjust tactics to conditions on the day.
Do I need a rod licence for Llyn Cau?+
Yes — all anglers aged 13 and over fishing in England and Wales need a valid Environment Agency rod licence. Buy yours at gov.uk/get-a-fishing-licence before your session.
Planning a Trip to Llyn Cau
A valid Environment Agency rod licence is required to fish Llyn Cau — buy yours at gov.uk. No additional permit is required — the water is free to fish with a rod licence.
Located in Gwynedd, Llyn Cau is a UK stillwater with quality coarse fishing. Check weather and conditions before your visit and always pack out your litter.
