Most of Galilee consists of rocky terrain, at heights of between 500 and 700 m. Several high mountains are in the region, including Mount Tabor and Mount Meron, which have relatively low temperatures and high rainfall. As a result of this climate, flora and fauna thrive in the region, while many birds annually migrate from colder climates to Africa and back through the Hula-Jordan corridor. The streams and waterfalls, the latter mainly in Upper Galilee, along with vast fields of greenery and colourful wildflowers, as well as numerous towns of biblical importance, make the region a popular tourist destination.