The Castleconnell Fishery is about 4.5m long and comprises six beats, each permitting four rods per beat. Each beat has up to six or more pools. The fishery operates from sunrise to sunset, seven days a week, from 1st February to the end of the season on 30th September.

This is an important spring fishery which can provide good fishing from mid-March to mid-May. On a good year, up to 200 spring salmon can be taken here averaging about 10-12lbs. From mid-May to mid-July, the grilse run predominates. Fishing tends to get slack in August, but in September, fish usually become active again on their way to spawn and can produce some lively fishing in suitable conditions.

First-time visitors to Castleconnell Fishery are given a free guided tour, where pools and best methods are explained. Guides – or 'ghillies', as they are locally known – are provided on request at a reasonable additional charge.