Plan your visit
🦅Birds🐶Dogs🦉Wildlife
Public accessFree entryDogs welcome846 ha
Getting here
52.94899, -3.69911
Open directionsv
Visiting this summer
Seasonal nature notes and what to look for now
▾
- ☀️June — long evenings and clear skies; one of the most rewarding months for a late visit
- 🐕Early mornings are best for dog walks in summer — visit before 9am to avoid the heat and find quieter trails
- 🅿️Parking on site — 16 car parks within reach
🌤️ Visiting this summer
- ☀️June — long evenings and clear skies; one of the most rewarding months for a late visit
- 🐕Early mornings are best for dog walks in summer — visit before 9am to avoid the heat and find quieter trails
- 🅿️Parking on site — 16 car parks within reach
- £Free to visit — no entry charge
- 🐕Dogs welcome
🦅Bird watching
Strong match
Reservoir — wildfowl and wading birds
Free
Dogs allowed with public access
Free
Reservoir — wildfowl and wading birds
Free
〰Waterside walks
Good match
Reservoir — waterside public access
Varies
🧺Picnic day out
Moderate match
Reservoir — waterside day out
Free
Trails nearby
Within roughly 5 km1 signed route nearby · 4 public paths nearby
Signed route nearbyPublic paths
The Tryweryn TrailWalking route▾
1 signed route nearby
Signed route nearby
Regional Route 15Cycling route▾
Named routeRef 15Regional cycle route
7 public paths nearby
Public paths
No named routes yet. Public paths are shown on the map.
Photos

On the southern shore of Llyn Celyn
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Events & activities nearby
Switch provider to compare local events, tours and bookable activities.
Bookable toursWildlife to spot
3,344 records · National Biodiversity Network
▾
Wildlife to spot
3,344 records · National Biodiversity Network🐦Birds37 species
springsummer
2025▾
Carrion Crow · Meadow Pipit · Skylark · Stonechat · Wren +32
- Carrion CrowCorvus corone
- Meadow PipitAnthus pratensis
- SkylarkAlauda arvensis
- StonechatSaxicola rubicola
- WrenTroglodytes troglodytes
- Canada GooseBranta canadensis
- RavenCorvus corax
- Pied WagtailMotacilla alba yarrellii
- Great Crested GrebePodiceps cristatus
- GoosanderMergus merganser
- Herring GullLarus argentatus
- Willow WarblerPhylloscopus trochilus
- WoodcockScolopax rusticola
- SwallowHirundo rustica
- WoodpigeonColumba palumbus
- WheatearOenanthe oenanthe
- WhinchatSaxicola rubetra
- MallardAnas platyrhynchos
- Lesser Black-backed GullLarus fuscus
- ChiffchaffPhylloscopus collybita
- Ring OuzelTurdus torquatus
- LinnetLinaria cannabina
- Common SandpiperActitis hypoleucos
- CuckooCuculus canorus
- BlackbirdTurdus merula
- Tree PipitAnthus trivialis
- BlackcapSylvia atricapilla
- House MartinDelichon urbicum
- GoldfinchCarduelis carduelis
- Grasshopper WarblerLocustella naevia
- KestrelFalco tinnunculus
- CurlewNumenius arquata
- GreenfinchChloris chloris
- ChaffinchFringilla coelebs
- RobinErithacus rubecula
- RedwingTurdus iliacus2024
- FieldfareTurdus pilaris2024
🐝Insects60 species
springsummer
2025▾
Protonemura meyeri · Plectrocnemia conspersa · Micropsectra · Eukiefferiella · Psectrocladius +55
- Protonemura meyeriProtonemura meyeri
- Plectrocnemia conspersaPlectrocnemia conspersa
- MicropsectraMicropsectra
- EukiefferiellaEukiefferiella
- PsectrocladiusPsectrocladius
- ChironomusChironomus
Species observations from the last 10 years via NBN Atlas
Wildlife to spot
3,344 records · National Biodiversity Network🐦Birds37 species
springsummer
2025▾
Carrion Crow · Meadow Pipit · Skylark · Stonechat · Wren +32
- Carrion CrowCorvus corone
- Meadow PipitAnthus pratensis
- SkylarkAlauda arvensis
- StonechatSaxicola rubicola
- WrenTroglodytes troglodytes
- Canada GooseBranta canadensis
- RavenCorvus corax
- Pied WagtailMotacilla alba yarrellii
- Great Crested GrebePodiceps cristatus
- GoosanderMergus merganser
- Herring GullLarus argentatus
- Willow WarblerPhylloscopus trochilus
- WoodcockScolopax rusticola
- SwallowHirundo rustica
- WoodpigeonColumba palumbus
- WheatearOenanthe oenanthe
- WhinchatSaxicola rubetra
- MallardAnas platyrhynchos
- Lesser Black-backed GullLarus fuscus
- ChiffchaffPhylloscopus collybita
- Ring OuzelTurdus torquatus
- LinnetLinaria cannabina
- Common SandpiperActitis hypoleucos
- CuckooCuculus canorus
- BlackbirdTurdus merula
- Tree PipitAnthus trivialis
- BlackcapSylvia atricapilla
- House MartinDelichon urbicum
- GoldfinchCarduelis carduelis
- Grasshopper WarblerLocustella naevia
- KestrelFalco tinnunculus
- CurlewNumenius arquata
- GreenfinchChloris chloris
- ChaffinchFringilla coelebs
- RobinErithacus rubecula
- RedwingTurdus iliacus2024
- FieldfareTurdus pilaris2024
🐝Insects60 species
springsummer
2025▾
Protonemura meyeri · Plectrocnemia conspersa · Micropsectra · Eukiefferiella · Psectrocladius +55
- Protonemura meyeriProtonemura meyeri
- Plectrocnemia conspersaPlectrocnemia conspersa
- MicropsectraMicropsectra
- EukiefferiellaEukiefferiella
- PsectrocladiusPsectrocladius
- ChironomusChironomus
Species observations from the last 10 years via NBN Atlas
Orthocladius
Orthocladius
Orthocladius
Orthocladius
Limnius volckmariLimnius volckmariLimnius volckmariLimnius volckmariNon-biting midgesChironomidaeNon-biting midgesChironomidaeBaetis rhodani/atlanticusBaetis rhodani/atlanticus2024Baetis rhodani/atlanticusBaetis rhodani/atlanticus2024Stempellina bauseiStempellina bauseiStempellina bauseiStempellina bauseiBrillia bifidaBrillia bifidaBrillia bifidaBrillia bifidaTanytarsus part 2Tanytarsus part 2Tanytarsus part 2Tanytarsus part 2Procladius (Holotanypus) Pe4Procladius (Holotanypus) Pe4Procladius (Holotanypus) Pe4Procladius (Holotanypus) Pe4Tanytarsus part 1Tanytarsus part 1Tanytarsus part 1Tanytarsus part 1Procladius crassinervisProcladius crassinervisProcladius crassinervisProcladius crassinervisParatendipesParatendipesParatendipesParatendipesAblabesmyia monilisAblabesmyia monilisAblabesmyia monilisAblabesmyia monilisStictochironomusStictochironomusStictochironomusStictochironomusPolypedilumPolypedilumPolypedilumPolypedilumTanytarsus part 3Tanytarsus part 3Tanytarsus part 3Tanytarsus part 3Podabrus alpinusPodabrus alpinusPodabrus alpinusPodabrus alpinusHeterotrissocladiusHeterotrissocladiusHeterotrissocladiusHeterotrissocladiusTveteniaTveteniaTveteniaTveteniaCorynoneura arctica groupCorynoneura arctica groupCorynoneura arctica groupCorynoneura arctica groupStempellinella brevisStempellinella brevisStempellinella brevisStempellinella brevisCricotopus rufiventrisCricotopus rufiventrisCricotopus rufiventrisCricotopus rufiventrisHeterotanytarsus apicalisHeterotanytarsus apicalisHeterotanytarsus apicalisHeterotanytarsus apicalisLimnophyesLimnophyesLimnophyesLimnophyesNanocladiusNanocladiusNanocladiusNanocladiusPotthastia gaediiPotthastia gaediiPotthastia gaediiPotthastia gaediiThienemanniellaThienemanniellaThienemanniellaThienemanniellaSynorthocladius semivirensSynorthocladius semivirensSynorthocladius semivirensSynorthocladius semivirensBryophaenocladiusBryophaenocladiusBryophaenocladiusBryophaenocladiusOrthocladius frigidusOrthocladius frigidusOrthocladius frigidusOrthocladius frigidusCricotopus (Cricotopus) otherCricotopus (Cricotopus) otherCricotopus (Cricotopus) otherCricotopus (Cricotopus) otherAmphinemura sulcicollisAmphinemura sulcicollisAmphinemura sulcicollisAmphinemura sulcicollisHydropsyche siltalaiHydropsyche siltalaiHydropsyche siltalaiHydropsyche siltalaiPolycentropus flavomaculatusPolycentropus flavomaculatusPolycentropus flavomaculatusPolycentropus flavomaculatusRhithrogena semicolorataRhithrogena semicolorataRhithrogena semicolorataRhithrogena semicolorataLimnephilidaeLimnephilidaeLimnephilidaeLimnephilidaeSimuliumSimuliumSimuliumSimuliumIsoperla grammaticaIsoperla grammaticaIsoperla grammaticaIsoperla grammaticaPerlodes mortoniPerlodes mortoniPerlodes mortoniPerlodes mortoniEcdyonurus venosusEcdyonurus venosusEcdyonurus venosusEcdyonurus venosusDicranotaDicranotaDicranotaDicranotaSiphonoperla torrentiumSiphonoperla torrentiumSiphonoperla torrentiumSiphonoperla torrentiumDrusus annulatusDrusus annulatusDrusus annulatusDrusus annulatusElmis aeneaElmis aeneaElmis aeneaElmis aeneaIron Blue MayflyBaetis muticusIron Blue MayflyBaetis muticusHesperocorixa sahlbergiHesperocorixa sahlbergiHesperocorixa sahlbergiHesperocorixa sahlbergiLimoniidaeLimoniidaeLimoniidaeLimoniidaeRhyacophila dorsalisRhyacophila dorsalisRhyacophila dorsalisRhyacophila dorsalisSericostoma personatumSericostoma personatumSericostoma personatumSericostoma personatumLeuctra hippopusLeuctra hippopusLeuctra hippopusLeuctra hippopusLeptophlebiidaeLeptophlebiidaeLeptophlebiidaeLeptophlebiidaeHydraena gracilisHydraena gracilisHydraena gracilisHydraena gracilisLeptophlebiaLeptophlebia2024LeptophlebiaLeptophlebia2024Leuctra fuscaLeuctra fusca2024Leuctra fuscaLeuctra fusca2024Hairy Whirligig BeetleOrectochilus villosus2024Hairy Whirligig BeetleOrectochilus villosus2024