Planning on hiking across the grand canyon as soon as the road to the north rim opens for the season. Plan on taking 3 days to do it then taking the shuttle back to pick the cruiser up. From what I understand its 27 miles so I'm thinking it should be fairly easy to do in three days. I have hiked to the river and back before at the south rim 18mi. but nearly didn't make it due to not bringing enough to eat. Just looking for pointers from anyone that has done it also what kind of temps to expect (mid may I think).