Experience the life aquatic at Boulogne-sur-Mer

The charming town of Boulogne-sur-Mer has much to offer, but it’s the spectacular French National Sea Centre that makes it a must-see, writes Barry Coughlan.

Over the years I skipped past it, perhaps came close to it, en-route from the ferry port to the delights of western France further south, but until late last year I hadn’t heard of the Opal Coast.