Hi, I've just done the National Parks trip in June as a newbie. When I got to Heathrow I looked out for the Just You luggage labels and very quickly found someone to breakfast with before boarding. On the plane we were a bit scattered so didn't know who was who apart from a few faces I had chatted to at the boarding gate. The Tour Rep Wendy came along to chat to us in the plane towards the end of the flight and we all congregated around her when we landed and she ensured we all got out of the airport and onto the waiting coach. She would suggest places to eat on the trip and arrange for us to meet in the lobby of whatever hotel we were at to decide where we would eat and who with so you were never left out unless you wanted to be. I took walking sandals, lots of cropped trousers, strappy t shirts and a cover-up shirt, and it was over a 100 degrees hot most of the time but don't know what the temperature will be like in September. The only time it was cool was at 6 a.m. especially on the river raft trip down the Snake River! I did all the excursions/trips, the Lake Powell boat trip, Fixed Wing flight over Lake Powell, helicopter over Grand Canyon, Cowboy Cookout, river raft trip, as my attitude is that you may never pass this way again and damn the expense! There were 33 in our party, all retirement age, about 10 men, the oldest was 86 but spry and witty. Everyone is there to meet other people so you all get on and chat and possibly find someone you will particularly partner up with. I have no sense of direction and at Salt Lake City went to the Creek Shopping Centre and into Macy's and my new friend said that I needn't stay with her if I wanted to shop on my own but I said I would hang on to her as if I left her she may never see me again! The tour leader really looks after you and gives you lots of info and suggestions, I could do it all again!