The Kru people are also on the coast, and have less general intelligence than the Fulahs, Mandingoes, and Degos. They are physically a fine-appearing race, with more real energy of character than either of the others. It would be difficult to find better specimens of muscular development, men of more manly and independent carriage, or more real grace of manner, anywhere in the world. No one ever comes in contact with them, for the first time, without being struck with their open, frank countenances, their robust and well-proportioned forms, and their independent bearing, even when they have but the scantiest covering for their bodies. Their complexion varies from the darkest shade of the Negro to that of the true mulatto. Their features are comparatively regular; and, though partaking of all the characteristics of the Negro, they are by no means strongly marked in their general outline or development. The most marked deficiency is in the formation of their heads, which are narrow and peaked, and do not indicate a very high order of intellectual endowment. Experience, however, has shown that they are as capable of intellectual improvement as any other race of men.[31] In the interior of Youeba, some distance back from Cape Coast, lies the large city of Ibaddan, a place with a population of about two hundred thousand souls. Abeokuta has a population of more than one hundred thousand, and is about seventy-five miles from the sea coast, with a history that is not without interest. Some fifty years ago, a few persons of different tribes, who had been constantly threatened and annoyed by the slave-traders of the coast, fled to the back country, hid away in a large cave, coming out occasionally to seek food, and taking in others who sought protection from these inhuman men-hunters. This cavern is situated on the banks of the Ogun, and in the course of time became the hiding-place of great numbers from the surrounding country. At first, they subsisted on berries, roots, and such other articles of food as they could collect near their place of retreat; but growing in strength by the increase of population, they began to bid defiance to their enemies.