One person, is the guide for all the players. A player is chosen, they are then blindfolded by the guide. They then lead them around a preset course which has lots of different objects along it's path that make a unique sound. Things like eggwisks, bubble wrap, etc Place about 30 or more objects along the route. The blindfolded player then has to identify as many of the objects as they can. After everyone has had a go, the person who got the most correct is the winner.
Source: From the original site.