Compass Minerals is marking 60 years of production at the Goderich Salt Mine this year.
The company is hosting a picnic for employees, retirees and friends Saturday at Harbour Park from 11:30 a.m. until 3 p.m.
Communications Manager Kevin Gabriel said the focus is primarily a "thank you" to employees, and there will be food, games and activities.
For those who are working a shift Saturday, there will be a breakfast celebration.