The caves that are located in Gharapuri Island in Mumbai’s harbour that date back to 600 A.D. are the Elephanta Caves. These have become a UNESCO World Heritage Site as rock-cut sculptures made of stone are carved showing the syncretism of both Buddhist and Hindi iconography and ideas.
It is speculated that the caves were constructed and completed by about 550 CE thus became a UNESCO WHS due to some parts of the caves are still preserved and need to be protected and preserved for future generations can still see them.
The name came from Elefante, named by the colonial Portuguese, when they saw statues of elephants on it then later named Elephanta.