The island has six salmon rivers and numerous lochs that have good stocks of wild brown trout. The most notable of the salmon rivers are the Aros, Baa and the Forsa. All are classed as spate rivers and sport depends on rainfall to raise the river levels along with being in the right place at the right time. In general the rivers are narrow and wading is not necessary as most pools can be covered with a short single handed rod. The salmon season is from 11th February to 31st October.
The river rises on the northern slopes of Beinn nan Carn and flows through Glen Aros to enter the Sound of Mull near Aros Castle 1 mile north of Salen. Given good conditions runs of salmon and sea trout can be expected in late June with salmon runs continuing through July to August. There can be a run of fish in October if there has been a drought during the summer. Between 80 and 100 salmon with an average weight 6/7lb and a similar number of sea trout are caught annually. There are a number of excellent pools that include the Yellow, Garden, Bucket, Sandmartin, Ash Tree, Corner and Stonechat.
This short two and a half mile long river flows from Loch Baa to enter the tidal waters of Loch na Keal near Killichronan. There are no barriers on the river to impede runs of fish and, given good levels during the summer, fish run the river from June to October. In the region of 80 Salmon, with an average weight of 7lb, and 100 sea trout are caught annually. The best pools are the Benmore, Garden, Corner, Oak Tree, Drumlang and the Sea. Salmon are also caught in the loch.
The river rises in the valley between the peaks of Sgurr Dearg and Beinn Talaidh and flows north down Glen Forsa for 10 miles to enter the Sound of Mull two miles east of Salen. Sea trout run the river from April onwards, but salmon do not enter until late May/early June. There are between 30 and 40 good holding pools on the river and sport is dependent on water levels and spate conditions to encourage fish over the falls at the mouth of the river. Between 50 and 80 salmon, with an average weight of 6/7lb, and a similar number of sea trout are caught annually.