阳光下海水波光闪烁。

The sea was shimmering in the sunlight.

每年都有好几万名来自世界各地的游客到泰国的那些潜水景点下海畅游。

Tens of thousands of tourists from around the world visit Thailand's famous dive sites each year.

我提前半天办理了离店手续，为的就是有时间能去附近亚龙湾（Yalong Bay）醉人的白色沙滩去游泳（那儿允许下海）。

I checked out half a day early so that I had enough time to swim off the stunning white sand beach in nearby Yalong Bay, where bathing is allowed.