Bunowen River – Louisburgh's salmon river

📍 Louisburgh, Mayo

🏛️ Attraction

Last updated: 28 June 2026

Overview

The Bunowen is a Mayo spate river: it rises in the Sheefry Hills, runs down through peatland and rough pasture, and reaches the sea by Louisburgh, near the mouth of Clew Bay. Below the town it’s deep and sluggish; upstream it opens into proper fly water, with pools, glides and faster runs. Like any spate river it lives on rain – come in a dry spell and there’s not much moving, so this is a place to time around the weather rather than the calendar.

It’s a fishing river before it’s a sight. If you’re not casting a line, the riverbank at Louisburgh makes a quiet, dog-friendly walk past stone bridges and slow pools, but it’s a pleasant hour rather than a destination in itself.

Angling

The Bunowen is a salmon river with a small run of sea trout alongside.

Salmon

  • Season: 1 April – 30 September, but the fishing is best from mid-June on, when the grilse start running. Fresh fish still come through in September.
  • Typical catches: salmon average around 5 lb, with 10 lb fish caught regularly.
  • Methods: fly-fishing is the usual approach. Worm and spinning are allowed on some stretches; shrimp fishing is not permitted.

Sea trout

  • Season: 1 June – 30 September.
  • Typical size: around 0.5 lb. All sea trout must be returned alive.

Conditions

The lower river flows slowly and is generally easy going. After heavy Atlantic rain the upper reaches can turn swift, so check water levels before you wade in.

Permits and licence

Fishing the Bunowen needs a valid state salmon licence and a local permit. Permits are available through Inland Fisheries Ireland and local agents in Louisburgh – worth sorting in advance, as the fishing is busiest once the grilse arrive.

Walking and nearby attractions

You don’t need a rod to enjoy the river. A gentle walk along the Louisburgh bank gives you the stone bridges, the slow pools and the hills behind. The route is dog-friendly and fine for families.

  • Louisburgh – The town was laid out in 1795 by the 3rd Earl of Altamont, later 1st Marquess of Sligo, to house Catholic refugees from the north of Ireland. The Granuaile Visitor Centre in the town tells the story of the pirate queen Grace O’Malley.
  • Beaches – The coast around the river mouth has several Blue Flag beaches – Bertra, Carramore and Old Head – good for swimming, surfing and coastal walks.
  • Island ferries – Roonagh Pier, about 7 km from Louisburgh, runs regular passenger ferries to Clare Island and Inishturk, so you can pair a riverside morning with an island afternoon.

Getting there and practical tips

  • Access and parking: the river is freely accessible from several points in Louisburgh, with on-street parking in the town and larger car parks at the nearby beaches.
  • Transport: Louisburgh is 22 km south of Westport on the R335. Bus Éireann route 450 runs regularly between Westport and Louisburgh.
  • Services: Louisburgh has B&Bs, guesthouses and self-catering cottages, with pubs serving local seafood, and shops selling permits and basic gear.
  • Seasonal advice: water levels rise quickly after rain, so check conditions before heading to the upper river. Mid-June through September is the most reliable window for salmon; sort your permit before you arrive, as they can sell out during a good run.