Kivu not only most beautiful of great lakes of Africa, is a unique large reservoir on all continent, not populated by crocodiles and hippopotamuses.
In waters of lake on depth from 350 up to 480 m in huge quantities the dissolved carbonic gas, methane and other substances contains. In superficial layers of these substances meets a little so for the person they are imperceptible. Nevertheless it is enough of them to not allow the harmful elementary to occupy lake Kivu.
The quantity of natural gases in Kivu gradually grows, as at the bottom of a waste hollow which borrows lake, the decaying fossils getting from the top layers have accumulated many. Their concentration speaks, on the one hand, huge hydrostatic pressure which is created with huge water thickness of deep lake, with another - stagnant character of deep waters which do not mix up with top. Stocks of methane reach here 50-60 billion м3, and the government of Rwanda assigns greater hopes for its use. Meanwhile the huge water gasholder supplies with fuel only located in Kisenii a brewery. But on methane Kivu the whole branches of the heavy industry could work. The government of Rwanda has addressed to neighboring countries with the offer to construct on the cooperative beginnings an interstate metal works where Rwandan methane could be used as an oxidizer.
The coast Kivu Rwandan seems where more beautifully Congolese. Woody mountains rising from water as though part, and between them in the east distances of savannas open.
Small coffee plantations the dark greens sharply contrast with allotments of peas and beans - the basic food of farmers - hootoo.
Here and there on coast the massive buildings of Catholic missions combined from a dark red brick tower; a cathedral, a number school, a hostel, hospital.

Kisenii - small Rwandan small town, a resort and the shopping center located on coast of lake Kivu.
We approach on lake from the north where last eruptions of a volcano burned out a wood and have covered the ground with the monotonous reservation grey tuffs. The heated lava has gone down in lake, has boiled its water па distance of 40 m from coast and has formed long deserted cape.
If not the bright sun, royal palm trees along coasts and flaring bright-red colors bougainvilleas at inputs in private residences Kivu it would be quite possible to accept for the Norwegian fjord. Each eruption of volcano Niragongo put forward new small peninsula or cape in lake, gave rise to new bays and gulfs, created whimsical outlines of its modern coastal lily.
Overgrown moistureloving woods of a rock break directly to transparent waters which, washing away soft tuffs, create freakish grottoes and caves. In the narrow gulfs deeply pressing mountains shaded from above by crones of trees, always easy, darkly and mysteriously. And on small islands - rocks solar patches of light start up cheerful hare, and the easy breeze breaks about them the waves, scattering diamonds splashes.
Living among mountains of east coast Kivu people of a tribe hoonde, every day observing as the sun sits down in red lake, have combined a legend. In it the sun spend the night in Kivu is spoken that. It warms up its bottom, and the fused ground mixs up with water, searches for an output. And then living under mountain to a floor a giant - demigod Gongo orders to spirits to open a muzzle of a volcano. « Then eruption begins, - assure hoonde.-And red light which in the evenings is visible above Niragongo, is gleam the sleeping sun ».