The cheapest way to get around in the city, the Mumbai local train network is perhaps the most reliable entity in the city. Unless the tracks are under water during the monsoon, services run from 5am to almost 2am on three major lines. The Western line leads to the suburbs of Bandra and Andheri, the Central line to the district of Thane and the Harbour line crosses a creek into the city of Navi Mumbai (New Mumbai). The compartments reserved for women have added security after 8pm so don't hesitate to hop on, even for a joyride!