India’s revered and sacred Ganges River has its origins high in the Himalayas of northern India and Tibet and flows down to form the Gangetic Plain of northern India before eventually reaching Bangladesh’s Bay of Bengal some 1,600 miles later. A cruise on the Ganges — or Mother Ganga, as it's affectionately known to devout Hindus — is a slow, sane way to explore India in comparison to travel on the country’s congested and dangerous roads. Ganges itineraries range from one to two weeks, with the longer routes sailing upstream from Kolkata (formerly Calcutta) to Patna, with add-on land extensions to Varanasi and other points in northern India. Some itineraries include the Hooghly River as well, a waterway that connects the Ganges to Kolkata.