Can you imagine someone living on the water for life and never going to land? Lake Donglisa is the largest freshwater lake in Southeast Asia and the second largest freshwater lake in the world, also called Phnom Penh Lake. After the rise of tourism in this country, it became a scenic spot. There are water houses, water schools, water police stations... everything is on the water, and Vietnamese refugees live on the water. Regarding the history of Vietnamese refugees, it is said that they have fled to escape the war. After the war, neither government recognized them, Vietnam no longer accepted them, and Cambodia did not care, limiting them to living in the lake, not to go ashore casually, without nationality. The water in Lake Donglisa is very turbid, like the life of Vietnamese refugees, and the "down-to-earth" action we are used to is a luxury for them. When we cruised to the cave of Lake Lisa, we often saw a variety of children with a snake around their necks, rowing the boat to us close, see us raise our mobile phone and say "take pictures for money", surrounded by the cruise ship women and children's main job is to find tourists to ask for things and money, here children The Chinese language that I will speak is these words: give money, take pictures, give money, give me... On the afternoon of October 2, 2019, we shared a lake with Vietnamese refugees and watched the sunset together. Then we went ashore and left, and they were trapped on this water for life, and everyone faced an unpredictable fate. Therefore, people should always go to that far place, to see the world, to see the life of others, to know what they have now, how to cherish.