![](http://www.alamy.com/thumbs/6/E6A8BCFD-F867-4B99-9D46-E06979DD0A23/H2PH2C.jpg)
Dokkum are well preserved and are known as the bolwerken (bulwark )
Size: 5670px × 3935px
Photo credit: © Peter Horree / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: .fortifications, beautiful, boat, boats, bolwerken, dokkum, dutch, fortifications, fortified, friesland, harbor, harbors, motor, port, preserved, sailing, ship, ships, town, vessel, vessels, yachting