One physical feature that differentiates Jabal al-Nour from other mountains and hills is its unusual summit, which makes it look as if two mountains are on top of each other. The top of this mountain in the mountainous desert is one of the loneliest of places. However, the cave within, which faces the direction of the Kaaba, is even more isolated. While standing in the courtyard back then, people could only look over the surrounding rocks. Nowadays, people can see the surrounding rocks as well as buildings that are hundreds of meters below and hundreds of meters to many kilometers away. Hira is both without water or vegetation other than a few thorns. Hira is higher than Thabīr (), and is crowned by a steep and slippery peak, which Muhammad with some companions once climbed.