THE FABRIC OF LAGOS, NIGERIA, is delicately strung together: The megacity spills from the mainland onto several islands in a lagoon that brushes against the Atlantic Ocean. It covers an area of about 1,300 square miles, and many Lagosians navigate the sprawling landscape on the back of a motorcycle taxi, or okada. Their daredevil drivers, called riders, zigzag through congested streets, dodging potholes and pedestrians as both rider and passenger—or, in some cases, multiple passengers—try to stay upright and unharmed. Public transportation here can be inefficient, and roads can be difficult to maneuver on foot. Okadas “solve a crucial problem that the government has been unable to solve for years,” says photographer and National Geographic Explorer Victor Adewale, who was born and raised in Lagos.
Some see okadas as a…