Beautiful, white sand, green trees, blue sea water and sky, water and sky, as if to a distant fairyland on earth. It's a real pleasure to see coral, starfish, sea cucumbers, turtles and small fish roaming freely around the island in a glass-bottom boat. Like diving, swimming friends have launched, enjoying the refreshing sea breeze and clear water. The uniform sea and sky scene will remind you how small human beings are in front of nature, how heavy a task it is for human beings to perceive the world and how long the road to recognize the world is. Blue sky, deep (blue) blue sea, white beach, green island, man and nature, environment and nature are in harmony. Looking at these, you will think of the pollution of our country, and you will feel how far we have to go in terms of environmental protection, and how ridiculous and distressing our practice of dying our grandchildren is.