Among them, the Yumple culture, whose members were considered the best sailors of the Peruvian coast. They were excellent in cutting mollusc valves, such as the Spondyllus Pictorum and the Concholapas Peruviana.
Under the kingdom of Pachacutec, Incas enlarged their frontiers to Tumbes.
After many difficulties, Spanish conquerors, with Francisco Pizarro as their leader, arrived to Puerto La Leña or Estero La Chepa, in Tumbes in 1532. They had to fight against the tallanes, local Indians that hardly resist the combat in the Manglares.