Since Vedic times, India has a glorious tradition of respecting rivers, lakes and stepwells. Following this tradition, a sacred water body, Narayan Sarovar, surrounds the main Akshardham mandir. Narayan Sarovar contains the holy waters of 151 rivers and lakes sanctified by Bhagwan Swaminarayan, including Manasarovar, Pushkar Sarovar, Pampa Sarovar, Indradyumna Sarovar, Manikarnika Ghat, Prayag Triveni Sangam, River Kshipra, Rivers Ganga and Yamuna and many others.
On the outer wall of the mandir are 108 bronze gaumukhs, symbolizing 108 names of God, from which holy water spouts forth.