Mohill is surrounded by a number of important and productive coarse lakes and the Rinn River. Inland Fisheries Ireland has angling structures on some of the lakes. There is an information board in the village which has finger signs indicating the more productive waters in the area.
Lough Bofin has an area of over 2,500ac and is located on the main Shannon. There is some good bream, roach, hybrid, rudd, and perch fishing available, but much of it is private, so be sure to make local inquiries for further assistance and advice.
Lough Boderg is a sizeable lake of over 3,000ac, located close to Rooskey and Dromod, about eight miles south of Carrick-On-Shannon. There is a match stretch in Derrycarne Forest Park off the Dublin N4 road. There are 25-30 pegs available within a short walk from the car park. Bream fishing can be very good here, and there are also hybrids, roach, rudd, and perch. This is also a good stretch for feeder fishing 30-40yd from a rocky shore into 10-12 ft of water.