Many of us pass years before final decision to visit this nature's feast adored by a human ( 2400 years ago) Kanheri Caves just near Borivali, Mumbai. It took me 50 years to reach this point, since my first visit to this city in 1965. Mumbai and caves! Mumbai was built on seven islands. As old sediments around coastal areas of Kandivali shows us, Mumbai was inhabitable since the stone age. It was mainly occupied by Koli fishing community.