Gwynedd
Llyn Trawsfynydd
Season 1 Feb to 20 Dec
Day tickets
Buy a ticket for a single day, with rates and dates further down.
Stillwater
Boat fishing available.
About Llyn Trawsfynydd
Llyn Trawsfynydd is a multi method lake run by Prysor Angling Association, with large areas of bank where anglers can fish bait or fly and several areas of bank that are fly only. The association stocks rainbow trout regularly alongside the natural brown trout, and says its over wintered rainbows survive well. The browns average just on 1lb, with fish over 7lb caught, and spawn in the upper reaches of the Afon Prysor. Rainbows average 1.10 to 1.12lb, fish of 4 to 8lb are caught regularly and the fishery record is 17lb 12oz. There are perch, some rudd and large pike as well.
The association has a fleet of 40 boats with outboard motors, for fly fishing only, and there are no prohibited areas. It warns that rock outcrops just under the surface can catch out the unwary, especially when the lake is not full, and that most of the dangerous ones are marked by metal pins. With an average depth of about 12 feet it says there is little need for fast sinking lines, and most of the sport is on floating or intermediate lines with mini lures, palmered flies, buzzers and dries.
The season runs from 1 February to 20 December. Rainbows are available throughout and browns only from April to the end of September. Permits and boats come from the Prysor Centre, and the association advises booking a boat. The only price list on the site is for the 2025 season, so none is shown. The position shown is approximate and near the Prysor Centre.
How you can fish here
- Methods
- Any Method
How to book
Day tickets and booking
- PA Prysor Angling Association Day tickets
Day tickets · Membership
Permits and boats come from the Prysor Centre on the lake shore. For fishing and boat bookings phone or email the lake, using the details on the contact page.
View club details
Fishing details
- Water type
- Stillwater
- Lake
- 1
- Boat fishing
- Available
Stocking and fish species
none stocking · The association stocks rainbow trout regularly through the season.
Rules and policies
Fishing rules for Llyn Trawsfynydd
Browns may only be fished for from April to the end of September. Boats are for fly fishing only. Several areas of bank are fly only. Care is needed because of rock outcrops just under the surface, most of them marked by metal pins.
Where you'll fish
Location
Approximate locationExact location is hidden at the owner's request..
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
Llyn Trawsfynydd FAQs
Practical questions anglers ask before fishing Llyn Trawsfynydd, from tickets to tactics.
01How many rods are allowed on Llyn Trawsfynydd at any one time?
02What species can I expect to catch on Llyn Trawsfynydd?
03Do I need to wade, or can I fish from the bank?
04Is a ghillie available, and do I need one?
05Where do I park, and how do I access the beat?
06What tackle should I bring?
07What happens if conditions are poor on the day I've booked?
08Are dogs allowed on the beat?
Price on application
Ask when you book















