One person is needed to watch and judge. Two ropes that are about 12 foot in length are streched out in parallel along the floor. One rope per team, so leaves so space between each rope. Everyone who is going to play (you need the same amount of people per team) lines up in front of the rope with their shoes off. They are then all blindfolded (make sure they can't peek down their noses) and the game starts. Each person must feel with their feet only and walk along the rope';s length, placing one foot in front of the other heel to toe. If they step off the rope they must go back to the start of the rope. Once they get to the end, the judge tells the next team member of that team they may start their walk. The team to finish first win.
Source: From the original site.