WiCHacks 2016 was awesome. Unlike many other Hackathons, it brought together hackers from middle school, high school, college, grad school and around the world.
I had the opportunity to help out as a volunteer and witness the event first hand. It was a worthwhile experience and I would recommend reading Jflory7's blog post about it.
Why I love WiCHacks by Justin W. Flory (a.k.a Jflory7)
*HFOSS Meetup 2