We plan to leave out of Las Vegas early May 29 in order to enjoy Valley of Fire SP before it gets too hot and catch a glimpse at Lake Meade on the way out. I expect this to take 3 hours. Then north on I-15 to the Kolob Canyons for late afternoon hikes and photography. This should take 3-4 hours. Next stop is Cedar City for dinner and a motel. Next day take a few hours enjoying Cedar Breaks before reaching hwy.89/9 and the east entrance to Zion early or mid afternoon. We will stay at Zion 2 nights and drive 9/89 over to Bryce. Will these added items to our initial las Vegas straight to Zion agenda be worthwhile assuming we have no special time constraints? We figured that by adding an extra day and a little extra driving and backtracking we could visit 3 more interesting places we may never have an opportunity to see again. Any thoughts or additions? Worthwhile?