Disney Land between 21st December 2013 and 27th December?

Hi, we are visiting Hong Kong for Christmas this year and are keen to visit Disney land...two adults, no kids. We wish to go on a possibly less busy day, but are not sure of what days are public holidays etc in Hong Kong. Which of these dates would be best. Also is it open on Christmas day and would this be a good day to go? Many thanks. GB.