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.
Christmas in Cameroon is celebrated with great enjoyment and fun. Christmas in Cameroon is a festival which is celebrated by all the people of all ages. The people celebrate the birth of Jesus on this day.
According to the 2010 revison of the World Population Prospects the total population was 19 599 000 in 2010, compared to only 4 466 000 in 1950. The proportion of children below the age of 15 in 2010 was 40.6%, 55.9% was between 15 and 65 years of age, while 3.5% was 65 years or older.