The Wiggle Wall (at the Habitot children's museum in Berkeley) teaches children how to navigate a network of claustrophobic tunnels. I can only imagine it was designed as a secret training program for Mexican drug mules.
It's not uncommon for children to get stuck. (And in fact, Elliot's friend Lila had to be extracted not long after these photos were taken.)
Elliot was able to make his way out without assistance.
Juárez, here we come!