Given the peculiarities of this country, it is worth ordering professional excursions in Nairobi (the cost of such events depending on the duration and route is 7900-31800 KES). You will be shown the city, told about its history and how to behave to ensure your own safety.
It should be noted that tourists coming to Kenya, even for a very short period of time, are rarely limited to the capital alone, for a cursory inspection of which is quite enough one day. The most interesting objects are located outside the city, so Russian guides in Nairobi offer excursions designed not for a couple of hours, but for a whole day or for several days.