![](http://www.alamy.com/thumbs/6/91C0C331-6878-49F9-9C53-767D95628633/2H8JGGF.jpg)
Dolosses at Cape Town harbour, weighing about 80 tons each, are reinforced geometric concrete blocks preventing coastal erosion and longshore drift
Size: 7360px × 4912px
Photo credit: © guy oliver / Alamy / Afripics
License: Licensed
Model Released: No
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