Blind for an hour.
Either Sidney was cheating, or she has the best hearing of any person I know. I was so convinced she was cheating that I added another dishtowel that went below her chin. She was still fine getting around, so her senses must just be superior to mine.
Wyatt only lasted about ten minutes, but Sidney enjoyed the full time we set aside to do this one. She ate dinner, played hide-and-seek with Wyatt, and took a stroll around the yard. She felt around a little bit, but mostly just tried to make her way around by listening to what other people were doing.
Get the book and do something dangerous with your kids.