July 29,2020 -- Lhalu Wetland is known as "the lung of Lhasa" and a "natural oxygen bar". The oxygen content and air humidity here are far higher than those in the downtown. There are more than 20 species of birds living in the wetland all year round, which is a good place for tourists and citizens to get close to nature. Lhalu Wetland is open to the public for free from Tuesday to Sunday in April-Mid-October every year.