Hajj rituals began Monday as pilgrims arrived at the Mina site in Mecca to observe the Day of Tarwiyah [1], [2].

This initial stage of the pilgrimage is a critical logistical and spiritual milestone, as millions of worshippers gather to follow the tradition of the Prophet Muhammad before proceeding to Mount Arafat.

More than 2 million pilgrims are expected to spend the Day of Tarwiyah in Mina [1]. This massive influx tests the infrastructure of the region, which has a total capacity of 2.6 million pilgrims [1]. To manage the environmental conditions and ensure the safety of the crowd, authorities have installed 400 misting fans to cool the atmosphere across the site [3].

Earlier this month, more than 1.5 million pilgrims arrived in Saudi Arabia in preparation for the start of the rites [4]. The arrival of these worshippers marks the beginning of a series of intensive rituals that define the Hajj experience.

While some reports differed on the specific timing of the 8th of Dhu al-Hijjah 1447 AH, current proceedings confirm the rituals commenced on Monday [1], [2]. The Day of Tarwiyah serves as the first day of the Hajj, where pilgrims spend time in prayer and reflection, preparing themselves for the pinnacle of the pilgrimage at Arafat.

The coordination of such a large-scale movement of people requires precise timing and extensive public health measures to prevent overcrowding and heat-related illnesses in the desert climate.

More than 2 million pilgrims are expected to spend the Day of Tarwiyah in Mina.

The scale of the 1447 AH Hajj highlights the ongoing challenge of balancing religious tradition with modern urban management. By utilizing technology like misting fans and strictly monitoring capacity limits, Saudi Arabia aims to mitigate the risks of heatstroke and crowd crushes, which have historically been the primary dangers during the Day of Tarwiyah and the subsequent move to Arafat.