The dominant vegetation of the State is the Swamp forest consisting of the
fresh water and mangrove swamp forest both of which are influenced by
the double rainfall pattern of the State, which makes the enviroment a
wetland region. Generally, the State has two climatic seasons: Dry (November – March) and Wet (April – October). The drainage system of the State is characterized by a maze of lagoons and waterways which
constitute about 22 percent of 787 sq. kms (75,755 hectares) of the State total landmass. The major water bodies are the Lagos and Lekki Lagoons, Yewa and Ogun Rivers. Others are Ologe Lagoon, Kuramo Waters, Badagry, Five Cowries and Omu.