ome option left to take these kids out via swimming and diving. in terms of when that operation is starting, we're not exactly sure. but given the urgency of the situation, you have to expect it will start very soon, if not having started already. >> the sun starting to rise behind you. we could see and we know the boys have been in somewhat of a level of communication with their families. tell us about that and does it give us any clues as to their moral down there. >> reporter: yeah. we did get a glimpse of some letters that were exchanged back and forth between the parents of these boys and the boys inside of the cave. they weren't able to establish a communication line but able to send letters back and forth and the boys were stoic in their letters. telling their parents not to worry. one boy saying that he's just looking forward to getting some fried chicken when he gets out. the boys collectively writing a letter asking their teacher not to give them too much homework so it reminds you h-how young ty