I'm not really sure where to post this, but my famly of four will be on board sept. 28th, and we are interested in participating in the fish extenders, and we are not really sure how to involve ourselves in this. We have two children, a boy (11) and a girl (13). We have done the extenders on our first cruise, but someone else made the arrangements, I am not sure how to proceed. Can someone please point me in the right direction. It would be fun to do again.