All Wales venues

Llyn Treflesg

53.2633, -4.5390

About Llyn Treflesg

Llyn Treflesg is a named Welsh lake (llyn) in Wales, listed in the GilledIt directory. Welsh llyns range from wild trout waters to stocked fisheries — confirm permits and access locally. Open GilledIt to log catches and check conditions here.

Snippet auto-extracted from public sources; verify with the venue before travelling.

Llyn Treflesg: frequently asked questions

Yes — Llyn Treflesg is a fishing venue in Wales. Contact the fishery directly to confirm rules and bookings.

Day-ticket availability for Llyn Treflesg isn't confirmed in our records. Contact the venue to ask about day tickets, season permits, or club membership.

Species records for Llyn Treflesg aren't confirmed in our database yet. Open the GilledIt app to see recent catches logged by other UK anglers, or contact the fishery for current stocks.

Yes — anyone aged 13 or over fishing for freshwater fish in England or Wales needs an Environment Agency rod licence, even on private waters like Llyn Treflesg. A 12-month 2-rod licence is £36.80 in 2026, and juniors aged 13–16 fish free but must register. Read our full guide at /blog/fishing-licence-uk-guide.

See what's biting at Llyn Treflesg

Open GilledIt to log your catches, see real-time tide and weather, and check what other UK anglers are catching nearby. Free on iOS and Android.