THE ORBA VALLEY is the southernmost valley in Navarre. In fact, there are two valleys in one: the plain, the site of many battles and ambushes, and the hills, somewhat remote and now uninhabited. A climate border housing the last Mediterranean wood before the mountains, on the other side of Alaiz and Izco. This is a land of cereals, vineyards and olive groves; and big game hunting. For botanists and ornithologists, it is a paradise where we can still find the remains of holm oak woods, boxwoods and junipers. A relic of nature with some particularly privileged areas: the El Carrascal holm oak wood, and Monte de Olleta and Monte del Conde nature reserves where we can hear the hooting of the owls and observe the magnificent flight of birds of preys.