Haliday island is one of the beautiful place in sundarban. It is the eight point on the tour of sundarban National park. The Halliday Wildlife Sanctuary, useally called Halliday Island, is one of the three Wildlife Sanctuaries of the Sundarbans Biosphere Reserve, the other two being the Sajnekhali Wild Life Sanctuary and the Lothian Wildlife Sanctuary. This Island is located on the river Matla, very close to the confluence of the Bay of Bengal.
Vital wildlife includes the Spotted Deer, Monkey, Wild Boar, Barking deer and Rhesus macaque. Lots of birds and endemic invertebrate fauna, much of which has not been properly recorded, are found on this island sanctuary. Royal Bengal Tigers are occasional visitors to this Island.