Hong Kong's Chief Secretary for the Administration, Mrs Carrie Lam, is to visit Macao tomorrow at the invitation of the Macao SAR Government. The Government Spokesman Office, in a statement issued today, said Mrs Lam would pay a courtesy call on the Chief Executive, Mr Chui Sai On. The Secretary for Social Affairs and Culture, Mr Cheong U, will meet with Mrs Lam, who is also scheduled to look at tourism, leisure and convention facilities before returning to Hong Kong on the same day.