Many days ago i wrote a section in wikipedia about Worth seeing places in Karachi. Please check
Karachi is a tourist destination for domestic and international tourists. Some tourist attractions near Karachi city are:
Beaches: The beaches of Karachi are the main attraction for tourists. There are many beautiful seasides near city like Seaview, Manora Island, Sandspit Beach, Hawke's Bay Beach, Paradise Point, French Beach, Cape Monze, and Nathiagali Beach
Museums: The main museum of Karachi is National Museum of Pakistan others are Pakistan Air Force Museum and Pakistan Maritime Museum.
Parks:
Some popular parks are Bagh Ibne Qasim, Boat Basin Park, Mazar-e-Quaid, Karachi Zoo, Hill Park, Safari Park, Bagh-e-Jinnah, PAF Museum Park and Maritime Museum Park.
Historic places and buildings: Chowkandi graveyard is the most historic place in Karachi, famous for hundred-year old tombs. Historic buildings in the city were constructed in British era like Karachi Port Trust, Sindh High Court. Hindu Gymkhana, KMC Head Office, Ghulam Husain Khalikdina Hall, Frere Hall, Empress Market, Jehangir Kothari Parade, St Patrick's Church, Mohatta Palace and Karachi Cantonment Railway Station buildings.
Lake and National Park: Hub lake is 56 kilometres away in north of Karachi. It is an ideal place to birds watching, picnic, swimming and fishing. The Kirthar National Park is also located near this lake. The park is the home of Striped hyenas, Wolves, Ratels, Urials, Indian Gazelles and Sind wild goats.