In May my 4 year old daughter and I as well as my 9 year old niece and her mother will be going on our first cruise. I am a little worried about leaving them alone in the kids club. How does this work? I assume they cant just leave on there own. So we sign them in and out. Is there something that makes sure nobody else can sign them out? Can we check on them at anytime? I am a little paranoid when it comes to my child. I’m pretty sure there is a forum for this…I just haven’t found it.