This is a very beautiful attraction, located approximately 34 kilometres north-east of the city of Puno, in the province and department of the same name. It is opposite the Sillustani archaeological site, surrounded by marshy areas and meadows that flood seasonally. It has a maximum depth of 27 metres and is joined to Lake Titicaca via the River Illpa. The island of Umayo is in its centre, with its own flora and fauna as well as species that were introduced to the island, such as vicuñas, guanacos and deer. Its water level fluctuates and is at its lowest from July to September.
Various experience-based tourism activities are available in the immediate vicinity of the lake, which allow visitors to learn more about the local way of life. Some families have adapted their homes to offer accommodation to tourists. They demonstrate sowing seeds, weaving with alpaca and sheep wool, and animal husbandry. Hikes with llamas and boat rides on Lake Umayo are also offered, as well as activities such as herding domestic animals and participating in other farming activities.