According to the “Anglers Guide to the Lake District” “Ullswater cannot fail to impress the visiting angler. One of Cumbria’s most majestic lakes”
Ullswater holds schelley, perch, pike and brown trout. The trout season runs from 15th March to the 30th September. If you hold a national rod license then you can fish on Ullswater. Rod licenses for the day or week are also available at the Glenridding and Pooley Bridge TICs.