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Llyn y Dywarchen

21 ha

Plan your visit

BirdsWildlifeInsects
Free entryDogs welcome21 ha

Visiting this summer

Seasonal nature notes and what to look for now

  • 🐦89+ species recorded in this area — summer evenings are best for activity; watch for Chough and Canada Goose
  • 🍄Mushroom foraging is at its best in summer here
  • 🐕Dogs welcome — bring water in summer; the site has enough space to find shade on hot days

Good to know

  • £Free to visit — no entry charge
  • 🐕Dogs welcome
Parking

Best for

5 activities

Bird watching

Birds — Chough, Canada Goose, Meadow Pipit +86 more · last seen 2025; Reservoir — wildfowl and wading birds

Free

Wildlife

Birds — Chough, Canada Goose, Meadow Pipit +86 more · last seen 2025; Reservoir — wildfowl and wading birds

Free

Insect spotting

Insects — Sergentia, Corynoneura arctica group, Tanytarsus part 3 +52 more · last seen 2025

Free

Seasonal nature

Plants — Crenulated Flapwort, Dense Fringe-moss, Girgensohn's Bog-moss +40 more · last seen 2025

Free

Mushroom foraging

Fungi — Meadow Waxcap, Ballerina, Horse Mushroom +2 more · last seen 2022

Varies

Trails nearby

Within roughly 5 km
🚶

Walking

12 signed routes nearby

Signed route nearby
Welsh Three ThousandsWalking route
Named routeLocal walking route
Llanberis PathWalking route
Named routeLocal walking route
Watkin PathWalking route
Named routeLocal walking route
Rhyd Ddu PathWalking route
Named routeLocal walking route
Snowdon Ranger PathWalking route
Named routeLocal walking route
🚴

Cycling

1 signed route nearby

Signed route nearby
Lôn GwyrfaiCycling route
Named routeLocal cycle route

Wildlife to spot

Photos

1 / 22

Weather for this location

Next 14 days

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Nearby places

Useful places within 5 km

Visitor access unverified.We don't yet have confirmed information about walking routes or public access at this reservoir. If you've visited, please help us improve this page.