participated in the killing of the activists were later killed in a car bomb blast at Motherwell in 1989. The Cradock Four Memorial is a monument located in Lingelihle, a township near Cradock. The monument was erected on 22 July 2000 in commemoration of the Cradock Four. Economy and tourism Cradock is one of the Cape's chief centres of the wool industry, and also produces beef, dairy, fruit, lucerne, and mohair. Of enormous importance to the economic development of Cradock was the construction of the Orange-Fish River Tunnel. Completed in 1975 and in length it diverts water from the Gariep Dam on the Orange River to the Great Fish River and then on as far as the Addo Valley, Grahamstown and Port Elizabeth for irrigation, household and industrial use. The construction of the tunnel also made possible the annual Fish River Canoe Marathon. From humble beginnings in 1982 the two-day, event now attracts in excess of 1 500 paddlers from around the world. A notable attraction is the Mountain Zebra National Park just from the town, where the once-endangered zebra species together with lion, cheetah, buffalo and a range of antelope species are to be seen in magnificent surroundings. Notable attractions in the town are the "tuishuise" (at-home houses), superbly restored Victorian era craftsmen's houses in Market Street which form part of the Victoria Manor Hotel; the Dutch Reformed Moederkerk which dates back to 1868 and was designed after the style of St Martin-in-the-Fields in Trafalgar Square, London; and Schreiner House where the renowned author of The Story of an African Farm lived as a young girl. The house, which is located at 9 Cross Street and is a satellite of the National English Literary Museum, contains a modern set of exhibitions portraying the life of Olive Schreiner. People William Faulds, Victoria Cross recipient General Pieter Hendrik Kritzinger, Boer general and Assistant Commandant of the Forces of the Orange Free State and Commander-in-Chief of the Boer Rebel Forces in the Cape Colony during the Second Boer War Douglas Gilfillan, lawyer and plant collector Olive Schreiner, author and human rights activist Guy Butler, author and poet Etienne van Heerden, author and poet Neville Alexander, author James Arthur Calata, cleric and activist Mary Ngalo, anti-apartheid activist Clifford Isaacs, cricket umpire T. O. Honiball, cartoonist Abe Bailey, diamond tycoon, politician, financier and cricketer Baby Michau, rugby player Sir Joseph Robinson, 1st Baronet, mining