The correct answer is: a) Birdwatching.
The Harike Wetland is a man-made reservoir located in the state of Punjab, India. It is the largest wetland in India and is an important destination for birdwatching. The wetland is home to over 200 species of birds, including migratory birds from Siberia and Central Asia. It is also a popular destination for fishing, boating, and picnicking.
Option b) is incorrect because tiger safaris are not available at the Harike Wetland. Tiger safaris are typically offered in national parks and tiger reserves, where tigers are more likely to be seen in the wild.
Option c) is incorrect because white water rafting is not possible at the Harike Wetland. The water in the wetland is too calm for white water rafting.
Option d) is incorrect because trekking is not possible at the Harike Wetland. The wetland is a flat area with no hills or mountains.