And so the island's waters remain pristine. On clear days the ocean around the island is very blue, and one can see 30--or even 40--meters in the water. Before the planes even land, their passengers have been given a glimpse at the coral world under the sea.
萬里晴空的日子，綠島周遭的海水一片清澈湛藍，海水能見度平均可達水深三十公尺，甚至有時可達到四十公尺，小飛機尚未降落，海下的珊瑚世界便隱隱可見。