Visiting Hong Kong Ocean park on the Eve of Chinese New Year

Hi there, I'm struggling whether to go to Ocean Park on the 6th or 7th of Feb (before Chinese New Year kicks in). My bet is on the 7th, which is a Sunday, hoping that most people will be busy preparing for CNY. And 7th (the Eve) is suppose to be a reunion dinner/gathering day.

Do you think I should stick with the 7th or the 6th which is a Saturday?

Thanks