Players are sent out, in pairs, to wander a set of coridoors with one member of the pair blindfolded. For five minutes the sighted partner tried to disorient the blindfolded partner, by leading them into different rooms and spinning them around. They think that the blindfolded player has to find their way back when finished so they try to confuse them as much as possible. The leader then instructs that the formerly sighted player must now be blindfolded, and the previously blindfolded player has to lead the person back to where they came from. The team who makes it back first are the winners.
Source: From the original site.