The Ajanta Caves are mentioned in the memoirs of several medieval-era Chinese Buddhist travellers to India and by a Mughal-era official of Akbar era in the early 17th century. They were covered by jungle until accidentally "discovered" and brought to Western attention in 1819 by a colonial British officer Captain John Smith on a tiger-hunting party. The caves are in the rocky northern wall of the U-shaped gorge of the river Waghur, in the Deccan plateau. Within the gorge are a number of waterfalls, audible from outside the caves when the river is high.