Lough Craghy – A Tranquil Lake in Donegal’s Rosses

📍 North County Donegal, Donegal

🏛️ Attraction

Last updated: 28 April 2026

Overview

Lough Craghy (Irish: Loch na Cráiche – also recorded as Loch na Creige), affectionately known as Tully Lake, is a modest‑sized freshwater lake of about 110 acres in the heart of the Rosses fishery, north County Donegal. It sits just east of the coastal town of Dungloe and drains westward into the larger Dunglow Lough. The lake is dotted with small islands, jutting headlands and sheltered bays, giving the shoreline a constantly changing character. Its placid waters reflect the surrounding low hills and patchwork of bogland, creating a quintessentially Irish landscape that feels both remote and welcoming.

History & Background

The Rosses region has long been a Gaelic‑speaking enclave where fishing, peat cutting and small‑scale farming sustained local communities. Lough Craghy forms part of a network of roughly 130 loughs and rivers that have shaped the cultural and economic life of the area for centuries. The lake’s name derives from the Irish cráig (or creige), meaning “rock” or “crag”, a nod to the stony outcrops that line parts of its perimeter. While specific archival records for the lake are scarce, oral tradition records its use as a seasonal fishing ground, a practice handed down through generations of local anglers.

What to See & Do

Angling

Fishing
Courtesy Celtic Routes

The primary attraction is the seasonal run of sea‑trout (Salmo trutta) that arrive each summer from the Atlantic. The trout typically begin to appear in July, with the most productive months being August and September, especially after a wet season. Most fish average around three‑quarters of a pound, but specimens over four pounds are not unheard of, offering an exciting challenge for fly‑fishers. Popular dry flies include the Blue Daddy, Sedge, Silver Invicta and Golden Olive, which the trout often rise freely on the surface.

  • Bank fishing is permitted, though the terrain can be uneven and occasionally boggy.
  • Boat hire is available through the local tackle shop in Dungloe (Charlie Bonner’s Tackle Shop, The Bridge, Dungloe) for anglers who prefer smoother water.
  • The lake’s islands and bays provide quiet spots for casting into deeper water without disturbance.

Walking & Wildlife Watching

Rafting, a common behaviour in shearwaters
Rafting, a common behaviour in shearwaters Courtesy Mike Prince at Wikipedia

A gentle, informal loop trail skirts the lake’s perimeter, allowing visitors to explore headlands, low‑tide islands and sheltered bays. The diverse shoreline supports a range of birdlife:

  • Waterfowl such as swans and ducks are common.
  • Waders and occasional raptors hunt over the water.
  • In spring and early summer, the heath and bogland burst with heather, gorse and wildflowers, attracting pollinators and adding colour to the scenery.

Photography

Glenveagh National Park Donegal 05
Glenveagh National Park Donegal 05 Tourism Ireland by Gareth McCormack

The lake’s reflective surface creates striking mirror images of the sky and surrounding hills, especially at dawn when soft light and occasional Atlantic mist lend a dramatic atmosphere. Photographers will find unique angles from the islands, low‑tide wade points and the headlands that frame the water against rugged outcrops.

When to Visit

  • Fishing: July to September is the peak sea‑trout season; early mornings often produce the best bites.
  • Birdwatching: Late spring (May‑June) brings the greatest variety of migratory waders and raptors.
  • Photography: Dawn and dusk throughout the year offer the most dramatic light; autumn colours add extra texture to the surrounding hills.

Nearby Attractions

  • Dungloe – a colourful seaside town with pubs, craft shops and a weekly market, just a short drive west of the lake.
  • Assaroe – Abbey, Falls & Lake Area – another scenic water‑body in Donegal, offering additional walking routes and historic sites. See Assaroe.
  • The Rosses – the wider coastal region is famed for its rugged cliffs, sandy beaches and traditional Irish music sessions in villages such as Falcarragh and Glencolmcille.

Practical Information

  • Access: Lough Craghy is open to the public year‑round with no admission fee.
  • Angling licence: Anglers must hold a valid Irish angling licence and a permit from the Rosses Anglers Association. Permits can be purchased at Charlie Bonner’s Tackle Shop (The Bridge, Dungloe, Co. Donegal).
  • Boat hire: Available from the same local tackle shop in Dungloe.
  • Facilities: There are no dedicated visitor facilities on the lake; visitors should come prepared with appropriate footwear, weather‑proof clothing and any required fishing equipment.
  • Parking: [Information needed – please confirm location and any fees]
  • Dog‑friendly: [Information needed – are dogs allowed on the walking trail?]
  • Safety: The terrain can be uneven and some areas are boggy; caution is advised near the water’s edge and when wading to low‑tide islands.

Enjoy a day of tranquil fishing, gentle walks and striking photography at Lough Craghy – a peaceful corner of Donegal’s Rosses.