On the full moon day of Shravan is celebrated Nirjala Purnima to appease the fury of the Sea-god Varuna. It also marks the end of monsoon, and is primarily observed by sailors, fishermen and others living in the coastal areas of South India. They offer coconut to the sea on this occasion. If the sea happens to be far away, people go to some nearby tank, pool, river or some other source of water and offer the coconut.