The country has four patterns of drainage. In the south, the principal rivers flow southwestward or westward directly to the Gulf of Guinea — the Wouri, and lesser Dibamba, Bimbia and Mungo to the Cameroon estuary near Douala; Sanaga, Nyong, and Ntem further south along the coast; Akwayafe and Manyu (which joins Nigerian Cross), and the lesser Ndian and Meme in the north of coast.
Yaounde is the capital city, green and hilly, with chaotic traffic and meandering roads common to most capital cities spilling over with people.
Although coffee is grown as a cash crop in certain parts of Cameroon, locals more often drink the instant variety. Coffee stalls open up early in the morning, serving locals with bread and fillings for breakfast. Later in the day, tea and green tea are more popular as a hot drink.