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ROW skater on the Van Brienenoordbrug (bridge for A16)
 

skating in a tunnel underneath the Maas river
 

skaters + bicyclists on the escalators for the Maas bicycle + pedestrian tunnels
 

Container-ship facility on the Waalhaven.  Rotterdam handles the highest volume of shipping of any port in Europe.
 

The skate is almost back to our start point -- I'm on the Erasmusbrug looking northeast up the Maas river toward the Willembrug - (I think "brug" means bridge)