Harike Wetland came into existence in 1953 after the construction of barrage near the confluence of rivers Sutlej and Beas. The popular Harike Lake lies deep within the park. It occupies an area of 4100 hectares and spreads into three districts of Punjab namely Amritsar, Ferozpur and Kapurthala. It is also a water source for the Indira Gandhi Canal, situated in Rajasthan. The area was declared as a sanctuary in 1982 and was declared a Ramsar site by the International Body of Wetlands under the UNDP in 1990.
The sanctuary is a bird watchers paradise and attracts thousands of migratory birds during winter. Around 375 bird species have been recorded in the sanctuary. The lake is particularly famous for diving ducks, such as the crested pochard, common pochard and tufted ducks which occur in very large numbers. Harike also harbours endangered aquatic mammalian as well as reptilian fauna like Indus river dolphin, smooth-coated otter and seven species of rare freshwater turtles. The mammals found at Harike include the smooth Indian otter, the jungle cat, jackal, Indian wild boar and the common mongoose.
The major problems facing the Sanctuary are encroachments on the wetland habitat, widespread infestation of water hyacinth weed which is slowly chocking the system and reducing the available surface area, siltation and the resultant fall in the volume of water, drainage of untreated and toxic industrial effluents into the system from big cities like Ludhiana ,Jallandhar and Kapurthala, illegal fishing and poaching of birds etc.
The wetland inhabits a number of rare and jeopardized faunal species, such as testudine, turtle and the smooth Indian otter. One can also witness diving ducks, scaup duck, falcated teal, whiteheaded stifftailed duck, spot jungle cat, mongoose, jackal and Indian wild boar —rarely seen elsewhere in India—can be spotted here.
The wetland consists of rich vegetation such as Eichhornia crassipes, Azolla sp, lotus, Ipomoea aquatica, Najas, Hydrilla, Ceratophyllum, Potamogeton, Vallisneria, Charales, and much more. There are 26 species of fish that are recorded including Rohu, Catla, Puntius, Cirrhina Channa, Mystus, Notopterus ornata, Cyprinus, and Ambassis ranga. Recently, Indus dolphin (Platanista gangetica minor), which was supposed to have become extinct in India after 1930 was also spotted in the Beas River in Harike wetland area.
The variety of fauna includes Cotton Pygmy Goose, Tifted Duck, Yellow crowned Woodpecker, Yellow eyed Pigeon, Watercock, Pallass Gull, Brown headed Gull , Black headed Gull, Yellow legged Gull, Indian Skimmer, White winged Tern, White rumped Vulture, Hen Harrier, Eurasian Sparrowhawk, Eurasian Hobby, Horned Grebe, Black necked Grebe, Great Crested Grebe, White browed Fantail, Brown Shrike, Common Woodshrike, White tailed Stonechat, White crowned Penduline Tit, Rufous vented Prinia, Striated Grassbird, Cettis Bush Warbler, the Sulphur bellied Warbler and Diving duck…to name a few.