The Maha Kumbh Mela ("great festival of the pot of nectar of immortality") is held every three years in each of four different locations, returning to each of four places every twelve years. An Ardh (half) Mela (festival) takes place six years after the Maha Kumbh in each location.
At the meeting point of the sacred Yamuna river and the Holy Ganges, Sangam, the place most sacred to dip into the Sacred rivers. Pilgrims have to take boats to reach the place in the middle of the river. As you can see, very little water this year.