The grilse on in the Ballynahinch Fishery are traditionally very large, by Irish standards, averaging 5-7lbs with grilse up to 8lbs being caught late in the season, making it the perfect location for salmon fishing. The season officially opens on 1st February and extends to the 30th September, the effective season, however, begins with a small run of large spring salmon in May with the main run of grilse in early June with fresh fish continuing to turn up until the last day of the season.