Bali's highest and most revered mountain, Gunung Agung is an imposing volcano that can be seen from most of south and east Bali when clear of cloud and mist. Most sources say it's 3142m high. The summit is an oval crater, about 700m across, with its highest point on the western edge above Pura Besakih.
As it's the spiritual centre of Bali, traditional houses are laid out on an axis in line with Agung and many locals always know where they are in relation to the peak, which is thought to house ancestral spirits. The volcano has been erupting sporadically since November 2017, and an official Level 3 (standby) alert is current, with an exclusion zone of 4km around the volcano's crater.