Take the kids (and grandpa!) to The Great Paper Plane Fly-Off.
When and where: 10 a.m. to 2 p.m. Saturday, April 16 at the Pima Air & Space Museum, 6000 E. Valencia Road
What's it about: Paper airplane flying contest for kids ages 6-14. Contest registration is full, but it's fun to watch.
Cost: $9 kids ages 5-12, free for little kids, $12.25 for grown-ups. There's a burger place at the museum.
On Instagram: @pimaair