A woman stands in front of the Mediterranean Sea on the French Riviera city of Nice, on April 4, 2019. (Photo by VALERY HACHE / AFP)

A woman walks in the Mediterranean Sea on the French Riviera city of Nice, on April 8, 2019. (Photo by VALERY HACHE / AFP)

A woman swims in the Mediterranean Sea on the French Riviera city of Nice, on April 8, 2019. (Photo by VALERY HACHE / AFP)