On Day 2, participants were required to act out longer stories.

All participants are required to have a medical form completed by their doctor.

Among other things, he required participants to take part in at least one discussion on a topic they knew nothing about.

No participant is required or expected to consider every option.

The participants are all required to be able to communicate in Spanish.

The participants were required to move to neighborhoods with lower poverty levels - which they did.

Depending on the city the participants may be required to only use transit and their feet.

If then all participants are required to reconstruct the secret.

Each participant is required to raise a minimum of $2,500 in order to ride.

It's designed as a weeklong program, but participants aren't required to stay for the full time.