Last Updated: 16th Feb 2011
Some other suggestions, although not necessary - Travel pillow, chewing gum (especially for those who have ear problems during flight), book and/or ipod and one change of clothing (air lines do lose luggage occasionally)
The absolute best hike in Zion is Angel's Landing, it ends on a table top overlook 2000 feet above the valley floor...
I went on two tours alone...I made life-long friends along the way! That's the nature of Contiki.