Both the wife and I hold Irish Passports and we are travelling to Honk Kong and Shanghai etc

I am travelling from Dublin to Hong Kong for 7 days on 26th October and then flying to Shanghai and staying their for 2 nights before embarking on a cruise ship leaving Shanghai on 4th November for 8 days. The cruise ports of calling are Xiamen, China - Hong Kong, China - Phu My, Vietnam and thne finishing at Singapore.

I am leaving Signapore on 12trh November for Australia to see my son.

Can you please advise me quickly if I need visa's for the above destinations.

Many thanks