- - Coastal features - aquatic mammals with a large inside
- - Coastal defenses against flooding
- - Features of some coastal cities
- - Erosion protection
- - Coastal city protection
- - sound barriers?
- - They keep water out as well as looking different
- - Developed as well as tidal barriers
- - Strong shore embankments
- - Levees
- - Shoreline protectors
- - Embankments.
- - Dikes.
- - Flood insurance?
- - Jetties
- - Harbor structures
- - Breakwaters
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