The Naivasha lake in Kenya was a kind of paradise for birds, fish, hippos, the cows of the Maasai people. The lake has an area of 15,600 ha at an altitude of 1884m asl. It is a fresh water lake with a catchment of 2,378 km2. The lake is on a tentative list for becoming UNESCO heritage since 1999. A Tentative List is an inventory of those properties which each State Party intends to consider for nomination. The quote is from the actual description of the UNESCO website.
The lake environment is fragile but dynamic and supports tourism and geothermal power generation from deep-rooted stream jets among other economic activities. Lake Naivasha’s biodiversity is critically threatened by human induced factors, including: habitat destruction, pollution (from pesticides, herbicides and fertilisers), sewage effluent, livestock feeding lots, acaricide, and water abstraction. … Current research findings show that the lake cannot sustain further development activities on the scale seen over the last fifteen years. (UNESCO Lake Naivasha)