Nausicaá

Nausicaá in Boulogne-sur-Mer is Europe's largest aquarium, home to over 1,600 species and 58,000 animals spread across impressive tanks. You'll walk past a huge ocean basin where you come face-to-face with sharks, manta rays and countless colorful fish, and learn about ocean conservation through interactive exhibits. A visit typically lasts 4.5 hours and makes for a fun family day out.