Zhuhai's reliance on tourism and the sex industry is part of the complicated legacy of Liang Guangda, its mayor and Chinese Communist Party chief for 16 years until 1998 when Beijing ordered him moved to a job in Guangzhou. Local people refer to him as 'Liang Dapao', meaning 'Big Artillery' Liang, a reference to his love of grandiose projects and an ability to cultivate good relations with the high and mighty in Beijing. His legacy includes an international airport costing US$800 million that has no international flights and serves fewer passengers in a year than Hong Kong's in one week, and a Formula One track without a Formula One race - which went to Shanghai. Above the airport stands the calligraphy of former prime minister Li Peng, Mr Liang's best friend at the top of the party, who used to spend Spring Festival in a villa in the compound of the Zhuhai Guesthouse, a delightful area of lakes, trees and teahouses. Mr Liang left behind debts running into billions of yuan which the provincial and municipal governments have little hope of ever paying off. The city has three million square metres of uncompleted hotels, seaside villas, office buildings and shopping centres, some of which will be demolished. On the positive side, he created one of the most attractive cities in China, with parks, tree-lined avenues and kilometres of scenic coastal roads. This has attracted thousands of retirees, holiday makers and companies and government departments that hold meetings and conventions. The city is 75 minutes from Hong Kong by jetfoil and over the border from Macau. It has a well-run tourist industry, with five-star hotels, delicious seafood, a reconstruction of the Summer Palace in Beijing, hot springs with medicinal waters, golf courses and offshore islands. About half of the population of 1.3 million are migrants from other parts of China. But the city fails to match Foshan, Dongguan, Shunde and other Pearl River Delta cities in domestic and foreign investment. Industry accounts for a small part of its economy. So future generations may thank Mr Liang for keeping their air and water clean - but the price the city is paying is its dependence on the world's oldest profession.