The chief executive will take a long-overdue break with his wife tomorrow after almost a year of relentless battles over the Article 23 legislation. But Tung Chee-hwa can forget about unwinding in some exotic overseas location like Secretary for Justice Elsie Leung Oi-sie, who will return today from a five-day holiday in Moscow. Three days into his five-day break, Mr Tung will make a brief return to official duties for a lunch meeting with visiting German President Johannes Rau. The interruption will not be Mr Tung's only frustration, as during his short absence Hong Kong will have three different acting chief executives. Chief Secretary Donald Tsang Yam-kuen will step into Mr Tung's shoes for three days, Ms Leung for less than 24 hours and Financial Secretary Henry Tang Ying-yen for one day until the boss comes back to work next Thursday. While the Chief Executive's Office would say only that Mr Tung would spend the break outside Hong Kong with his family, a close aide said his most likely destination would be the mainland. 'Where else can he go in such a short time? Of course he can't go far. Places like the US, Canada and Europe are definitely out of the question,' the official said. Mr Tung's last holiday was an overnight trip to Shanghai in January for the opening of a museum dedicated to his father, the late shipping magnate Tung Chao-yung. The chief executive, who is known to work long hours every day, has taken less than five days of leave in the past 14 months. Dr Tsang Fan-kwong, a psychiatric specialist at Castle Peak Hospital, said Mr Tung should take more rest to improve his efficiency and 'enjoy life'. 'Working for a long period without a break can seriously affect mental and physical health.' While the 'musical chairs' arrangement for acting chief executive is certainly unprecedented, the government explained that Donald Tsang had to leave for the US on Tuesday for a business trip. The Basic Law states that in the absence of the chief executive, his position should be filled by the chief secretary, the financial secretary and the secretary for justice, in that order. As Mr Tang returns to Hong Kong on Wednesday after attending the World Trade Organisation's meeting in Mexico, Ms Leung has to fill the vacuum.