Lake Titicaca is the largest plateau lake in the world. Living on a floating island at an altitude of 3,800 meters, living with the indigenous people, I feel that there is no Wi-Fi, no bathing, no power supply and no entertainment. These floating islands and the above grass houses are woven with reeds. There are 90 families on the whole lake, one island, and they repeat sunrise, sunset and catching every day. Fish, the life of hunting in the evening.