Lake Onega water per year, of which 46% are industrial and household water, 25% is stormwater runoff and 16% is melioration-related drainage. This drainage contains of phosphorus and of nitrogen; respectively of these elements are removed through the River Svir whereas the rest accumulates in the lake. Ships and motor boats (about 8,000 units) bring oil pollution at the level of about per navigation year, as well as phenols (), lead () and oxides of sulfur, nitrogen, and carbon. The lake basin is a major source of granite, marble and black schist in Russia which have been exploited in the area since
Lake Naivasha Country Club people can wander on foot among herds of antelope since there are no predators on the island. LNCC will arrange boat trips for a reasonable charge. Naivasha is also a site for birdwatching, with over 300 species of birds on display: three bird walks a day have been offered along the grounds of the country club, including early morning bird walks which are particularly good for rare sightings of birds. They have a bird-sighting book available publicly to record birds one sees. Lake Naivasha Country Club The Lake Naivasha Country Club is located on the opposite shore of Lake Naivasha