Lough Carra is a limestone lake, 4,000 acres in area. It is a shallow with a maximum depth of only 60ft. Because the lake is relatively shallow, trout can be caught in all parts of it.

On the west shore of Connor's Island and along the Annies shore fishing is good with a southerly or southwesterly wind. North of Castle Island from the Kiltoom shore to the Annies shore fishing benefits from a southwesterly. South of Castleisland to the Twin Islands a westerly or south westerly can be good. Between Castle Island and the Twin islands, and the open waters between Derrinrush and Rineen there are good fishing waters. South of the Twin Islands to Lynch's point is another open water which is quite good. In fact fish can be caught in any part of the lake from Moorehall to Moynish point. To get to the Northern part of the lake you must go along the channel from Otter Point to Kilkeeran. The lake is very shallow here. In Summer months the depth can be as low as 2 ft. The angler with a long shaft outboard motor is advised to proceed through the shallows with caution. From Kilkeeran the lake extends northwards into a large open water.

The mayfly
This water runs westwards to Kilfaul. The middle portion of this part of the lake is characterised by deep water - 40ft.The deepest part of the lake is at the Black Hole where a depth of 60ft. occurs.A south wind gives the ideal conditions for fishing on this part of the lake. The angler can choose betwen the east shore or the west.The Narrows at Church Island lead Northwards to further open water but good angling can be had along the west shore from Church Island to Castleburke. Good fishing can be had in Quinn's Bay in mainly Westerly winds.The usual lake patterns of fly, fished wet or dry, give good results. Dapping with Mayfly and later in the season with grasshopper and Daddy-long-legs gives best results.