I guess I could have provided more info in my original question.
Yes, we are going into the Havasupai reservation. The Tribal campground is 7 miles from the Colorado, & no camping is allowed below it, so a 14 mile day hike is the only way to get to the main canyon. I've been on this trail before (stopping to remove boots & dry off, etc. meant that we had to turn around about half way in order to make it back to camp before dark)- it varies from outright rock climbing to flat woodland trail. All the crossings are at least ankle deep, some over the knees. As day hikers we'll only be carrying water, lunch, first aid kits, rope, & some other emergency gear, but 14 miles over that terrain will be a real push if we make footgear stops at every crossing, thus my dilema.
Thanks again for all your replies. Scouting truly is a brotherhood.