River Húseyjarkvísl has established itself as one of the most productive sea trout rivers in the country and numerous huge fish are caught every year. Although the fishing area is primarily known for big sea trout, a few salmon are also caught there. In Húseyjarkvísl the fishing rules are fly fishing only and all fish must be released. Without a doubt, catch and release is the reason that such large sea trout are caught in the river; sea trout up to 96 cm have been landed. The river is fished for two to three days at a time. The average catch is about 650 sea trout each summer.