Ten more tourist attractions will offer a 50 percent discount on admission prices on Tuesdays from May 5, 2009, the Shanghai tourism authority said.

The Shanghai Ocean Aquarium, Zhujiajiao Ancient Town, Oriental Land in Qingpu District and Fengjing Ancient Town in Jinshan District are among the "half price Tuesday" scenic spots, Labor Daily reported.

The tourism authority has listed 18 tourist attractions, including the Oriental Pearl Tower, the World Financial Center and Jinmao Tower, in the discount scheme.

On February 24, the first day of the scheme, the Oriental Pearl Tower saw three times the usual number of tourists.

The scheme will be extended until July 28. It was due to end on April 28 but the discounts have proved extremely popular, the Shanghai Tourism Authority said.