Lough O’Flynn


Co. Roscommon, Ireland

Fishery Information

Lough O’Flynn, also known as Loch Uí Fhloinn, is a freshwater lake located in west County Roscommon, Ireland. The lake measures about 2 km long and 1 km wide and is the source of the River Suck. The lake is renowned for its rich stock of brown trout and is a popular fishing spot for locals and tourists alike. Lough O’Flynn is part of the Inland Fisheries Ireland’s managed waters, and anglers require a fishing permit to fish here, which can be purchased online or at any local permit agents.

What size do the fish go to?

The primary fish species in Lough O’Flynn is the brown trout, which averages around 1.25 lbs. However, some brown trout of up to 3 lbs have been recorded. The lake also hosts other fish species such as roach, perch, pike, and the critically endangered European eel.

What tactics work well?

Angling is permissible by fly fishing, dapping, spinning, and trolling under oars. The lake has prolific hatches of duckfly, chironomids, lake olives, mayfly, and spent gnat. There is a notable fall of daddies in August, and dapping the daddy or grasshopper is a tactic that’s almost guaranteed to produce a few trouts. The best flies include the sooty olive, March brown, Connemara black, mayfly patterns including spent gnat imitations, murrough, green peter, and daddy. Fishing season runs from 1st March to 12th October.

What facilities are on site?

Lough O’Flynn offers easy access to the lake at two locations both on the south/east shore, near the old railway station at Willsborough. Facilities include a small boat harbour with boats for hire, an IFI office, and a place known as “The Pumphouse”. On the southern shore, there is good public access with a boat harbour, pier, and a spacious car park. The surrounding areas of the lake also offer attractive rugged scenery, walkways, hiking trails, and a series of looped walks in nearby Cloonfad.

Is parking available?

Yes, there is a spacious car park available at the southern shore of the lake for public use.

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