Lagos is the capital of Nigeria and most populous city. It is the most important city of Nigeria with respect to economy. Most of the population lives on the mainland of Lagos and most industries are located there too. Lagos is known for its music and night life, which used to be located in areas around Yaba and Surulere. This is the main source of revenue generation for the people living in Lagos. In recent years more night clubs have sprung on the island making the island and in particular Victoria Island, the main nightlife attraction.
Lagos Mainland districts include Ebute-Meta, Surulere, Yaba (location of the University of Lagos) and Ikeja, site of Murtala Mohammad International Airport and capital of Lagos State. Greater Lagos includes Mushin, Maryland, Somolu, Oshodi, Oworonsoki, Isolo, Ikotun, Agege, Iju Ishaga, Egbeda, Ketu, Bariga, Ipaja, Ajah and Ejigbo. The city of Lagos lies in south-western Nigeria, on the Atlantic coast in the Gulf of Guinea, west of the Niger River delta, located on longitude 3° 24' E and latitude 6° 27' N. On this stretch of the high-rainfall West African coast, rivers flowing to the sea form swampy lagoons like Lagos Lagoon behind long coastal sand spits or sand bars.
Some rivers, like Badagry Creek, flow parallel to the coast for some distance before exiting through the sand bars to the sea. The two major urban islands of Lagos in Lagos Lagoon are Lagos Island and Victoria Island. These islands are separated from the mainland by the main channel draining the lagoon into the Atlantic Ocean, which forms Lagos Harbour. The islands are separated from each other by creeks of varying sizes and are connected to Lagos Island by bridges.