A series of islands on Cologne Island are underwater snorkeling, each island has its own characteristics; it is said that the lake water is 70 (%) fresh water 30 (%) saltwater, but do not pay attention to the water temperature, only to taste salty, because when you go out to snorkeling sea area accidentally eat a mouthful of water, you will find that it is much saltier. Gemini Xiehu Lake is characterized by a lake in the mountains surrounded by the sea. To swim into the Xiehu Lake, you have to swim through a gap that can only accommodate one person and enter the Xiehu Lake inside. It feels cold and hot. It is particularly strange that the water temperature is cold and hot. It is also a mirror lake in front of you. It is like a paradise. There are not many people here, just like paradise, and it is exciting and quiet.