Question: what is the hardest merit badge?
Answer: Bugling.
Skating. ... 
Cycling* ... 
Water Sports. ... 
Backpacking. ... 
Swimming* ... 
Small-Boat Sailing. A windy lake (remember, this is Chicago) can test a sailor's perseverance. ... 
Traffic Safety. “There was a lot of information, including rules and regulations,” Joseph says. ...