
Nairobi is the capital of Kenya and the largest city in the country. Nairobi has a population of between three and four million. The city is the largest and fastest growing city in Kenya and one of the largest in Africa and lies on the Nairobi River.
Prior to entering Kenya, citizens of some countries have to have a visa before entry. These countries are Afghanistan, Jordan, Senegal, Azerbaijan, Lebanon, Somalia, Armenia, Mali, Syria, Cameroon, North Korea, Tajikistan, Iraq, Nigeria, Ivory Coast and Stateless Persons. Citizens from most other countries will need a visa which can be obtained on entry at the airport or border crossing (if overlanding). A single Entry Visa costs US $25 (has gone down from US $50) valid for three months and a transit visa will cost US $15 Since mid of 2009 border visa can also be paid in Euro. If you are only traveling through the country via a connecting flight and will not leave the secure area of the airport you will not need a visa.