Spring-fed and limestone-clear near Mullingar, and the clarity alone would make Owel worth a season on its own. Mayfly and sedge hatches are excellent, and the early season is a good one too, with olives from March onward. The trout average over a pound, with three-pounders coming often enough to be expected rather than hoped for — a productive Midlands water that rewards patience and a boat well handled rather than luck.
Duckfly typically opens around the second or third week of April and runs about two weeks, best in mild spells around Srudarra Island and the neck of the lake, followed by lake olives through May peaking around the 15th. Buzzers build through a mid-May to mid-June peak with a strengthening evening response late in May, alongside only a sparse, localised mayfly hatch rather than a prolific lough-wide event. The large sedge Green Peter (Phryganea) fishes from around 22:00 in July-August, starting earlier in a hot summer and later in a cool one, with a lighter second lake-olive hatch typically returning late August into September.
- Lough system
- Limestone