The reserve is the largest in Jordan and includes a variety of terrain, from sandstone cliffs over 1500m high near Dana to a low point of 50m below sea level in Wadi Araba. Sheltered within the red rock escarpments are protected valleys that are home to a surprisingly diverse ecosystem. About 600 species of plants (ranging from citrus trees and juniper, to desert acacias and date palms) thrive in the reserve, together with 180 species of birds. Over 45 species of mammals (25 of which are endangered) also inhabit the reserve, including ibex, mountain gazelle, sand cat, red fox and wolf.
The cache is located on the top of the rock, contains a pencil.