We found a white sand bar and had a swim in water clear as amber.

我们发现了一个白色的沙洲， 并在清澈如琥珀色的水中游泳。

A barachois is a coastal lagoon and it's split from the ocean by a sand bar.

barachois 是一个沿海泻湖， 它被一个沙洲从海洋中分离出来。