Normandy tourism - from their website.
They had huge synchronised firework displays on the Landing beaches. Other, smaller displays, elsewhere thoughout the week.
"A UNIQUE EVENT
For this very special occasion, Normandy’s ambition is to offer a major family-friendly event, aimed at Normans and visitors alike, who have little or no access to official ceremonies. The date of Saturday 1st June, at nightfall, has been chosen for this event, on the weekend ahead of 6th June. Over 20 huge firework displays will light up the sky simultaneously over the 5 Landing Beaches. A beautiful family-friendly and free event."