1. Ocean Wave and Current Erosion
Or Whoa Sally, this ocean has motion!

2. Wave Motions Particles in a wave travel circular paths
The water in a deep-water wave does not move forward

3. The Highest Recorded Ocean Wave

4. When Waves Meet the Shore
When the beach interferes with wave motion, the wave steepens and the top overtakes the bottom.

5. Kowabunga!

6. Wave Refraction Waves change path when they reach shallow water
Wave energy is concentrated on headlands and spread out in bays

7. Shore Erosion Wave energy can carve out arches in the headlands.
Overtime a sea stack is formed.

8. Rip Tides
When waves break parallel to a beach, rip currents or rip tides occur.

9. Longshore Current and Beach Drift
Most beach sand is created by weathering and carried to coasts by rivers.
Beach sand moves along the coast by the longshore current and beach drift.

10. Barrier Island
Long, narrow islands of sand and/or gravel that are usually aligned parallel to the shore.

11. Trying to save the beach
Man has tried to save beaches by building groins that retard the flow of sand with the longshore current.
These are of limited success.

13. We foolishly build right on the beach.

14. In the long run, nothing is as futile as trying to resist shoreline change. Change can be resisted for a while, but when the water wants something badly enough, it will come in and take it.