Diamond Harbour is in the southern suburbs of Kolkata, about 50 KMs from the city. It is a popular weekend getaway destination from Kolkata. Here's where Hooghly river (one of the tributaries of Ganga) meets the Bay of Bengal. It was known as Hajipur before the British decided to name it Diamond Harbour. Local attractions are Chingrikhali fort, lighthouse and riverside that offers lovely view of the river. Visit during November to January to enjoy the pleasant and mild temperature.