3 ms·> Highly recommend everyone watch/read about the dam they built in the North Sea. Watch what?by century19 7y ago> Highly recommend everyone watch/read about the dam they built in the North Sea. Watch what?mcv 7y agoAbout the Afsluitdijk. It's not really in the North Sea, it's separating the Wadden Sea from the former Zuiderzee, now the IJsselmeer.simplemts 7y ago^ This. Thank you for the correction and more accurate description.