A view of two worlds at the coastline of Hon Yen,Phu Yen during low tide days, when local children having fun time boating back home after long hours supporting their families to harvest seafood at the reefs, and the apperance of many interesting marine lives and a coral reef ecosystem just right beneath the surface where the kids boating through. The coastal ecosystem here is home for hundred of species, protect coastline from storms and erosion, provide jobs & source of food for local communities. Unfortunately, environmental factors threaten the coast, making the underwater ecosystem more vulnerable.