Here is how to replicate this experience:

1. Park near the Hopi House
2. Walk along the South Rim of the Grand Canyon.
3. Find some rocks that hang out a bit. Obviously not something that you would die from if you fell off of. An unpleasant climb back up, yes.
4. Walk out there with your 4-year old son.
5. Do not fall.
6. Get angry looks from your wife for the next hour or two. (And any time you show her this photo.)