City repairing portion of eroded beach in Waikiki By: KHON2 News

Sand replenishment project planned for Waikiki Beach as erosion concerns grow By: Hawaii News Now

Adding Sand To Eroding Beaches By: FOX 5 San Diego

Researchers use drones to learn how to combat chronic erosion at Waikiki beach By: Hawaii News Now

How Coastal Erosion Works By: Practical Engineering

Beaches and Migrating Sand By: Earth Rocks!

Sand erosion By: AFP News Agency

Where Does Sand Come From COLOSSAL QUESTIONS By: Colossal Cranium