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    Trout fishing on Lough Derg

    Peter's 17.4lb trout from Lough Derg

    OPEN SEASON: March 15th – September 30th

    Lough Derg is a large lake of over 30 kilometres in length and is regarded as a mixed fishery. Lake brown trout indigenous to Lough Derg and are well distributed throughout the lake.

    While the season opens in March, the height of the angling year is undoubtedly during the Mayfly season. Fish feed ferociously on mayfly and are in prime condition as they leave the lake on their migratory journey up river to their spawning grounds on the Little Brosna/Camcor rivers and other tributaries on the system. Artificial local patterns of the Greenfly and the Spent Gnat Mayfly are fished dry on 6lb line during the Mayfly season which commences in late April/early May. Another popular method is to Dapp the live Mayfly itself or a Golden Olive fished wet to represent the emerging mayfly.

    Trolling Rapalas is practiced early in the year with some success. Some very large fish can be caught such as that in the picture featured above.

    Angling regulations

     BYE-LAW 949 strictly prohibits:

    • The taking of any brown trout of less than 36 centimetres.
    • For a person to fish with more than 2 rods at any one time.
    • To fish with more than 4 rods at any one time when there is more than one person on board the boat concerned.
    • For a person to take more than 2 trout per day.


    Trout fishing is free

    Other useful information


    Access is excellent at a number of points including the following – Co Clare or western shore at Killaloe, Scariff, Mountshannon, Rossmore and Williamstown Harbours, Whitegate, Portumna Bay Co Galway, Eastern shore, Terryglass, Kilgarvan, Coolbaun, Luska Bay and Dromineer


    There are a number of Marinas on the shores with slipways.

    Guides and Instructors in the Shannon Region

    Tackle shops in the Shannon Region