The Elephanta Caves are a collection of cave temples predominantly dedicated to the Hindu god Shiva, which have been designated a UNESCO World Heritage Site. They are on Elephanta Island, or Gharapuri, in Mumbai Harbour, 10 kilometres (6.2 mi) east of Mumbai in the Indian state of Mahārāshtra. The island, about 2 kilometres (1.2 mi) west of the Jawaharlal Nehru Port, consists of five Hindu caves, a few Buddhist stupa mounds that date back to the 2nd century BCE, and two Buddhist caves with water tanks.