• Julian McClenaghan, 3, from Sarnia eats a hot dog during the Bright's Grove Optimist Club's Canada Day in the Grove event Saturday in Kenwick Park. Terry Bridge/Sarnia Observer/Postmedia Network /Terry Bridge/The Observer BRIGHT’S GROVE – Canada Day celebrations are officially under way in Sarnia-Lambton. Thousands of people showed up here Saturday for the Bright’s Grove Optimist Club’s Canada Day in the Grove event. Held in Kenwick Park, the community gathering ran for 11 hours.