Afon Llyfni · Gwynedd

Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni

Passport scheme

Passport scheme
Check the booking details below before you travel.
Bag limit of 8
You may take up to 8 fish. Check the rules below.
5.5 miles of fishing
On the Afon Llyfni.

About Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni

The Seiont, Gwyrfai and Llyfni Fishing Society holds the whole of the Afon Llyfni, about 5.5 miles from Llyn Nantlle to the estuary at Pontllyfni. The Llyfni is a small river in North Wales that arises as Nant Drws y Coed between Mynydd Mawr and Mynydd Drws-y-Coed, just west of Snowdon. The main river forms at the outlet of Llyn Nantlle Uchaf, flows past the great slate workings of Nantlle, picking up drainage from the very deep flooded quarries, and passes south of Talysarn and Penygroes.

How to book

Day tickets and booking

FP

The Fishing Passport Day tickets

Day tickets

The beat page prints no ticket price on 28 October 2026: tickets and prices load on the booking page by date, and it showed no dates. One ticket covers every Seiont, Gwyrfai and Llyfni Fishing Society beat on the Passport. Booked through the Fishing Passport.
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Seiont, Gwyrfai and Llyfni Fishing Society Day tickets

Day tickets

Seiont, Gwyrfai and Llyfni Society water. Day tickets are sold through the Fishing Passport, and the society sells its own season licences.
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Fishing details

Length: 5.5 miles
Water type: Main river

Stocking and fish species

Brown Trout

Salmon

Sea Trout

Rules and policies

Catch & release

Bag limit: 8 fish

EA rod licence required

Dogs allowed

Ghillie available

Ghillie required

Fishing rules for Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni

Maggots are prohibited. Floats are prohibited on all rivers. Prawn fishing is prohibited. The catch limit is 8 fish in any continuous 24 hours, including no more than 4 char. Sea trout under 12 inches may not be kept. No angler may fish a pool or run in front of an angler already fishing it, and must move down within 15 minutes if asked. Fish caught on society waters may not be sold. No dogs. National byelaws apply.

Where you'll fish

Location

Approximate location

Exact location is hidden at the owner's request. This beat is on the Afon Llyfni.

Conditions on the Afon Llyfni

The river

Gwynedd

Afon Llyfni

The Afon Llyfni is a small river in north west Wales of about five and a half miles. It begins as the Nant Drws y Coed between Mynydd Mawr and Mynydd Drws-y-Coed, just west of Snowdon. The main river…

View the Afon Llyfni guide

FishingBeats is an independent guide with no affiliation to the fisheries we list. Listings are editorial and unpaid, and are not supplied or approved by the fishery. See our listings policy. Listing details are compiled by FishingBeats and may change or contain mistakes. Some services, such as tuition, ghillies, or accommodation, may only apply to certain packages and not to standard day tickets. Always confirm pricing, fishing details, and what is included directly with the beat before you book. Spotted something wrong? Email hello@fishingbeats.com and we will correct it.

FAQ

Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni FAQs

Practical questions anglers ask before fishing Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni, from tickets to tactics.

01How many rods are allowed on Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni at any one time?

The rod limit for Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni is listed on the beat page — check before booking, as limits vary by season and fishery preference.

02What species can I expect to catch on Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni?

Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni holds Brown Trout, Sea Trout, Salmon. The water is unstocked, relying entirely on the wild population.

03Do I need to wade, or can I fish from the bank?

Wading arrangements for Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni are listed on the beat page — contact the provider if you need to confirm before arriving.

04Is a ghillie available, and do I need one?

No ghillie service is listed for Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni — contact the provider directly if you'd like informal guidance on your first visit.

05Where do I park, and how do I access the beat?

Parking details for Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni are shown on the beat page, including a map pin where one is provided. Always confirm access arrangements with the provider when you book.

06What tackle should I bring?

For most chalk stream beats on the Afon Llyfni, a 9-foot 4- or 5-weight rod with a floating line is the standard setup. The fly recommendations section on the Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni page suggests the most effective patterns month by month.

07What happens if conditions are poor on the day I've booked?

River conditions can change quickly, especially after rain. Contact the provider as early as possible if you're concerned about Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni — many are happy to offer an alternative date if the river is unfishable. Cancellation and rescheduling policies vary by provider; check the notes on the booking page or ask when you book.

08Are dogs allowed on the beat?

Dogs are not listed as permitted on Seiont, Gwyrfai and Llyfni Fishing Society, River Llyfni. Check the Beat Rules section on the page or contact the provider before bringing a dog, as policies can vary by season and stretch of the Afon Llyfni.