In the midst of the boisterous commotion of life, and people running after their long and short-term goals, are people who free themselves and travel to answer the call of God.
And proclaim to mankind (the duty of) Hajj (Pilgrimage to Makkah); they shall come to you on foot and on every lean camel, coming from every remote path. (Al-Hajj 22:27)
Here’s another link to the brochure
Pilgrimage to Makkah… Here I Am at Your Service God
Source