It is revered as a holy site by Buddhists, Hindus, Muslims and Christians. It has specific qualities that cause it to stand out and be noticed; including its dominant and outstanding profile, and the boulder at the peak that contains an indentation resembling a footprint. As the 1910, Encyclopædia Britannica notes
For a long period Adam's Peak was supposed to be the highest mountain in Ceylon, but actual survey makes it only 7353 ft. above sea-level. This elevation is chiefly remarkable as the resort of pilgrims from all parts of the East. The hollow in the lofty rock that crowns the summit is said by the Brahmans to be the footstep of Siva, by the Buddhists of Buddha, by the Muslims of Adam, whilst the Portuguese Christians were divided between the conflicting claims of St Thomas and the eunuch of Candace, queen of Ethiopia. The footstep is covered by a handsome roof, and is guarded by the priests of a rich monastery half-way up the mountain, who maintain a shrine on the summit of the peak.
It is an important pilgrimage site, especially for Hindus and Buddhists. Pilgrims walk up the mountain, following a variety of routes up thousands of steps. The journey takes several hours at least. The peak pilgrimage season is in April, and the goal is to be on top of the mountain at sunrise, when the distinctive shape of the mountain casts a triangular shadow on the surrounding plain and can be seen to move quickly downward as the sun rises.
Climbing at night can be a remarkable experience, with the lights of the path leading up and into the stars overhead. There are rest stops along the way.
The mountain is most often scaled from December to May. During other months it is hard to climb the mountain due to very heavy rain, extreme wind, and thick mist.
Buddhists say that the footprint mark is the left foot of the Buddha, left behind as he strode away, the right footprint being (depending on legend) in Amphoe Phra Phutthabat, Saraburi Province, located about 150 kilometres northeast of Bangkok, Thailand. This place is called in Thai Phra Bat or Phra Phutthabat.
Tamil Hindus consider it as the footprint of Lord Shiva. It is also fabled that the mountain is the legendary mount Trikuta the capital of Ravana during the Ramayana times from where he ruled Lanka.
Muslims and Christians in Sri Lanka ascribe it to where Adam, the first Ancestor, set foot as he was exiled from the Garden of Eden. The legends of Adam are connected to the idea that Sri Lanka was the original Eden.
A shrine to Saman, a Buddhist "deity" (People who have spent spiritual life during their life on earth and done pacificism service to regions are deified by Sri Lankan Buddhists) charged with protecting the mountain top, can be found near the footprint.