We (family of four including two teenage girls) are visiting GCNP in mid July 2014. We are staying the night before at Sedona so are planning to get to the South rim by lunch time (staying at Kachina Lodge). We are only staying two nights and will be leaving for Las Vegas afterwards. We obviously want to make the most of our short trip as we may not have the opportunity to return (live in UK) so would be grateful for suggestions as to what we shoudln't miss. We are thinking about a flight and/or water trip but they are not essential. (I have seen some other posts on this topic and will read them more thouroughly but, if anyone has any specific points, please make them.) Many thanks.