Dibeen forest is situated just south of the famous Roman city of Jerash, where it cloaks the steep hillsides over an area of some eight square kilometres. Most of the trees are Aleppo pines, mixed with evergreen oak (Quercus calliprinos) and a scattering of red-barked arbutus. It also has a few wild olive, pistachio and pear trees. The Aleppo pines are some of the oldest and largest in the kingdom and Dibeen is the driest part of the world in which they are known to grow naturally.
The forest has been open to the public for many years and it has a large rest house, with accommodation and food. The rest-house and surrounding area get very busy on Fridays and littering is a major problem. There is no trail system as yet but there are a number of minor roads through the forest that lead to secluded glades with impressive views. Dibeen is particularly attractive in March and April, when it is full of lavishing spring flowers.