Gangasagar Tour Package From Kolkata. Gangasagar, also known as “Sagardwip”, is an island located on the delta of Ganges. Offering a blissful sight of the confluence of the Bay of Bengal with the River Ganges, this place is a holy site for many pilgrims. Flowing through Gangotri, the Ganges next comes towards West Bengal to finally mix with the sea in the Bay of Bengal. Kolkata to Gangasagar Tour Package, gangasagar day trip from kolkata, Gangasagar Tour Package From Kolkata