Lough Corrib

Overview

Lough Corrib (Irish: Loch Oirbsen) is the largest lake wholly within the Republic of Ireland and the second‑largest freshwater lake on the island, covering 176 km² and stretching roughly 35 miles from Galway City north‑west towards Maum in County Galway. The lake straddles County Galway and a small slice of County Mayo, feeding the River Corrib which flows through Galway into the Atlantic. Its waters host a remarkable diversity of wildlife – otters, mink, stoats, bats, a wealth of birdlife and, beneath the surface, thriving populations of salmon, brown trout and pike. Designated a Ramsar wetland in 1996 and a Special Area of Conservation, the lake is a haven for nature lovers and a living museum of Irish maritime archaeology.

Name & Mythology

The name Loch Oirbsen is thought to derive from the ancient sea‑god Manannan mac Lir, also known as Oirbsen, linking the lake to Ireland’s mythic maritime heritage. This mythic connection is echoed in local folklore that describes the lake as an inland sea.

History & Background

The lake’s human story stretches back millennia. Bronze‑Age dugout canoes and a 10th‑century Viking vessel have been recovered from its depths, and the 12th‑century Friar’s Cut – Ireland’s first canal – once linked the lake to the sea at Galway, enabling medieval trade. Modern surveys have uncovered dozens of historic wrecks, including the 40‑ft “Annaghkeen Boat” and a Victorian pleasure yacht; all are protected, and a licence from the National Monuments Service is required to dive them.

Lough Corrib also bears the imprint of legend. The island of Inchagoill is said to have sheltered Saint Patrick and his nephew Lugnad, whose grave is shaped like a rudder. Hen’s Castle (Castlekirk) on a tiny island tells the tale of pirate queen Grace O’Malley, who seized the stronghold in the 16th century. While the castle is not open to the public, it can be viewed on a boat cruise.

In 1828 a tragic boating accident claimed the lives of 20 people on the lake; the event was later commemorated in a poem by the blind Irish‑language poet Antoine Ó Raifteiri (Raftery). A memorial near Annaghdown harbour marks the tragedy.

In 2007 the lake suffered a Cryptosporidium outbreak that contaminated Galway’s water supply, prompting major upgrades to treatment facilities. Today, invasive species such as Lagarosiphon major (waterweed) and zebra mussels pose ongoing ecological challenges.

Wildlife & Nature

Lough Corrib supports a rich mosaic of habitats. The shallow, lime‑rich southern basin nurtures extensive beds of Charophytes – the most extensive in Ireland – providing vital food for wildfowl. Birdwatchers can hear the spectacular “dawn chorus” in spring and may spot golden‑eagles, hen harriers, and a variety of waterfowl. Mammals include otters, mink, stoats and several bat species. The lake’s biodiversity is monitored, and visitors are asked to clean footwear and equipment before entering the water to help protect these fragile ecosystems.

Seasonal Highlights & Activities

• Salmon season opens on 1 February and runs to 30 September.
• Trout season opens on 15 February and also ends on 30 September.
• Early spring is the best time for bird‑watching, when the dawn chorus is at its peak and migratory waders arrive.
• Summer evenings provide ideal conditions for sunset kayak tours and leisurely sailing trips.
• The lake’s 365 islands, especially Inchagoill, are most accessible from late spring to early autumn when the weather is milder and the water levels are stable.

Environmental Management

The lake is monitored for invasive waterweed (Lagarosiphon major) and zebra mussels. Ongoing projects, coordinated by the National Parks and Wildlife Service and local authorities, include:

• Regular shoreline inspections and removal of waterweed where feasible.
• Public awareness campaigns urging anglers and boaters to clean gear before and after use.
• Nutrient‑reduction schemes targeting sewage discharges in the southern basin, aimed at improving water quality for the extensive Charophyte beds. Visitors are encouraged to follow the “clean, dry, store” principle to help prevent the spread of these species.

What to See & Do

Island cruising & heritage tours

• Inchagoill Island Safari (2 hrs) – visit Lugnad’s stone, two ancient churches (5th‑ and 12th‑century), a graveyard and the remains of a small village. Operated by Corrib Safari and Corrib Cruises.
• History Cruise from Ashford Castle (1 hr) – commentary on the lake’s castles, monastic sites and filming locations of The Quiet Man.
• Island Cruise from Cong or Oughterard (2 hrs) – stops at Inchagoill and offers views of Hen’s Castle, the Maumturk range and Connemara’s wild coastline.

Water sports

• Kayaking – Lough Corrib Adventures runs guided 2‑hour tours for €55 per person, taking paddlers to secluded bays and islands. Kayakmor also offers half‑day and multi‑day trips, plus a sunset kayak experience.
• Sailing – Lough Corrib Adventures provides a 3.5‑hour sailing adventure for €250 (2‑6 people). Luxury Charter Lough Corrib offers private motor‑yacht charters from Lisloughrey Pier.
• RIB speed tours – Corrib Safari’s 8.4 m RIB reaches up to 25 knots, allowing rapid access to remote islands and dramatic mountain vistas.

Angling

The lake is famed for salmon and brown trout. The salmon season opens 1 Feb, the trout season runs 15 Feb‑30 Sep. Angling centres around Oughterard, Cong and Headford provide boat hire, guides and tackle. Ireland West Angling and Tom Doc Sullivan both offer guided fly‑fishing trips, emphasizing catch‑and‑release and sustainable practices. Because of numerous underwater hazards, first‑time anglers are advised to hire a local guide.

Land‑based activities

• Cycling – the 52 km Castlequarter‑to‑Annaghdown loop follows the lake’s southern shore, offering gentle climbs and panoramic views.
• Walking & heritage – the Menlough Portal Tomb near Menlo, the restored Annaghdown Castle, and the Curraghmore Sheep Dip (a 19th‑century stone dip) add cultural depth to lakeside walks.
• Equestrian – Moycullen Riding Centre provides pony treks with vistas over the lake and beach rides on Rusheen Bay.

Scenic Drive

The Lough Corrib drive is a recognised scenic route that loops around the lake, beginning and ending in Galway city. Clockwise or anti‑clockwise, the drive follows the N84 along the eastern shore, passes the market town of Headford, then turns onto the R334 towards Cong. Highlights along the way include:

• The historic ruins at Annaghdown harbour, where a memorial commemorates the 1828 tragedy.
• Ross Errilly Friary, one of Ireland’s most impressive monastic ruins, just outside Headford.
• The village of Cong, famous for its connection to The Quiet Man and the nearby Ashford Castle.
• Views of the Maumturk range and the limestone‑rich landscape that frames the lake. The route covers roughly 140 km and is popular with cyclists, motorcyclists and families looking for a day‑long adventure.

Transport & Access

Public transport

• Bus – City‑centre buses from Eyre Square (routes 31/32) run to Oughterard and Cong, taking about 30‑45 minutes. The stop labelled ‘Lough Corrib’ drops passengers within walking distance of the lake’s southern shore.
• Train – The nearest railway station is Galway; from there, local buses connect to the lake’s towns.

Car access & parking

Key public quays and car parks include:

• Upper Corrib: Oughterard Pier (Cornamona, R345), Cong Pier, Lisloughrey Pier (near Ashford Castle).
• Lower Corrib: Annaghdown Pier and Streamers Quay in Galway city – the most convenient points for visitors arriving from the city.
• Scenic roadside car parks: Derrymoyle, Hackett’s, Birchall, Collinamuck, Knockferry, Rinnaknock, Greenfields, Derries, Golden Bay – all free, with slipways for boat launch.

Accessibility

Most major cruise vessels (e.g., the 80‑passenger Isle of Inisfree and the 50‑passenger Corrib Queen 2) feature wheelchair‑accessible decks and onboard toilets. Smaller RIBs are not wheelchair‑friendly.

Safety & Rescue

In May 2025 a multi‑agency search was launched after a fisherman failed to return from Golden Bay. Local anglers, Gardaí and the Irish Coast Guard coordinated a rescue that located the man safely the following morning. The incident highlights the importance of checking weather forecasts, carrying a VHF radio (Channel 67 is the local frequency) and informing someone of your planned route before heading out on the lake.

Nearby Attractions

• Aughnanure Castle – a well‑preserved 16th‑century tower house a short drive from the lake’s western shore.
• Ross Errilly Friary – medieval Franciscan ruins near Headford, offering guided tours.
• Connemara National Park – accessible via the northern shoreline, ideal for longer hikes.
• Ashford Castle – luxury hotel with its own private slipway, fishing, sailing and spa facilities.
• Clonbur (An fhairche) – a Gaeltacht village with craft shops and access to the western side of the lake.

Practical Information

Boat cruise timetables & prices

Contact for Corrib Cruises: 087 994 6380 / 087 283 0799, email info@corribcruises.com.

Kayaking & sailing bookings

• Lough Corrib Adventures – book online at https://www.loughcorribadventures.com/book-online or call the Cornamona Pier office. Prices: €55 per person for a 2‑hour guided kayak; €250 for a 3.5‑hour sailing trip (2‑6 people). Sauna sessions are also available at the Cornamona Pier location.
• Kayakmor – online booking via https://www.visitgalway.ie/things-to-do/activities/watersports/kayakmor/.

Angling licences & season dates

• Salmon season: 1 February – 30 September
• Trout season: 15 February – 30 September
• Licences are required and can be obtained from local angling centres in Oughterard, Cong or Headford.

Environmental notes

The lake is monitored for invasive waterweed (Lagarosiphon major) and zebra mussels. Visitors are asked to clean footwear and equipment before entering the water to help protect these fragile ecosystems. Ongoing projects aim to reduce nutrient pollution from sewage discharges, particularly in the southern basin.

Nearby accommodation highlights

• Carraigín Castle (Headford) – restored 13th‑century tower house with lake views.
• Ashford Castle – luxury hotel overlooking the lake, offering fishing, sailing and spa facilities.
• Crossriver B&B (Oughterard) – gateway to Connemara and Lough Corrib angling.
• Cong Caravan & Camping Park – family‑run site within walking distance of the lake and historic sites.