Another option is to visit Honfleur which is right across the river from Le Havre. It’s a 1000 year old medieval town with a charming harbor that Monet painted. There are many quaint shops, an art museum, art galleries, dining, and the oldest still standing wooden church in France. It was founded by the Vikings and was the main port before it silted up and Le Havre was built. It’s also where the first settlers to Canada embarked. It’s worth a visit.
https://www.voyagetips.com/en/things-to-do-in-honfleur/