der.hansCactusConKids was even better this year.
The 1 day program added an escape room. To participate kids had to first complete 3 stations: lock picking, arduino updates and a simple breadboard build.
Each of the 3 rooms in the escape challenge had a puzzle matching one of the 3 pre-requisite skill stations. Each also had a hack to bypass the challenge. #CactusCon is a hacker/security conference after all :).