At 3,812 meters above sea level, in the Peruvian highlands is the highest navigable lake in the world, Lake Titicaca, in Puno. Here you can find the Uros Floating Islands, a set of approximately 80 islands built from reeds, an aquatic plant that grows on the surface of Lake Titicaca. The reed is woven and spread over another layer of it to build the surface of each island. perurail.com/es/blog/las-islas-flotantes-de-uros-y-su-comunidad
The Uros islands are a group of 90 man-made totora reed islands floating on Peru’s Lake Titicaca. Its inhabitants, the Uros tribe, pre-date Incan civilization and continue to hunt and fish the plentiful land and waters they occupy.
That's how fascinating these floating reed islands are. Families live close together on just under 40 square meters. Accessible only by boat. But there are doctors and schools here too. The tourist excursion boats are steered to the small islands in a regulated manner. Today it's the islands in the north, tomorrow in the south. The residents sell all kinds of homemade items. And they are just super nice!