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Marchlyn Mawr

34 ha

Plan your visit

BirdsWildlifeSeasonal
Free entryDogs welcome34 ha

Visiting this summer

Seasonal nature notes and what to look for now

  • 🐦60+ species recorded in this area — summer evenings are best for activity; watch for Wheatear and Meadow Pipit
  • 🐕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

Best for

5 activities

Bird watching

Birds — Wheatear, Meadow Pipit, Wren +57 more · last seen 2025; Birds — Wheatear, Meadow Pipit, Wren +57 more · last seen 2025

Free

Wildlife

Multi-group wildlife — Birds, Mammals; Multi-group wildlife — Birds, Mammals

Free

Seasonal nature

Plants — Slender Fringe-moss, Green Mountain Fringe-moss, Frizzled Crisp-moss +201 more · last seen 2025; Plants — Slender Fringe-moss, Green Mountain Fringe-moss, Frizzled Crisp-moss +201 more · last seen 2025

Free

Insect spotting

Insects — Garden Chafer · last seen 2025; Insects — Garden Chafer · last seen 2025

Free

Foraging

Plants — Two-horned Pincerwort, Common Threadwort, Great Scented Liverwort +1 more foraging species

Varies

Trails nearby

Within roughly 5 km
🚶

Walking

7 signed routes nearby

Signed route nearby
Surgeons WalkWalking route
Named route
Welsh Three ThousandsWalking route
Named routeLocal walking route
Llanberis PathWalking route
Named routeLocal walking route
Snowdonia Slate TrailWalking route
Named routeRegional walking route
Cambrian WayWalking route
Named routeNational walking route
🚴

Cycling

12 signed routes nearby

Signed route nearby
Lôn Las PerisCycling route
Named routeLocal cycle route
National Cycle Network National Route 82Cycling route
Named routeRef 82National Cycle Network
Main RouteCycling route1.2 km
Named routeRef 82Length 1.2 kmNational Cycle NetworkOn-roadSurface asphalt
Main RouteCycling route3.1 km
Named routeRef 82Length 3.1 kmNational Cycle NetworkOn-roadSurface asphalt
Main RouteCycling route68 m
Named routeRef 82Length 68 mNational Cycle NetworkTraffic-freeSurface asphalt
Main RouteCycling route61 m
Named routeRef 82Length 61 mNational Cycle NetworkOn-roadSurface asphalt

Wildlife to spot

Photos

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Weather for this location

Next 14 days

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Nearby places

Useful places within 5 km

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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.

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