Through this thesis I have done an investigation on the city of Buenaventura in the Colombian Pacific region, and the factors that compose it, taking into account that it occurs in a context of poverty and scarcity. The response that the inhabitants have given to the problems they have faced over the years is also analyzed, providing solutions to living, through informality, vernacular architecture, and preserving their cultural traditions in the way of living, coexisting, and live. But, in particular, the relationship between the city and the sea is analyzed, since the water element is of vital importance in the formation of the city and in the way of living.