Because everything in our world is "climbable", I sometimes overlook the most obvious things because I'm so busy trying to identify the less obvious ones.
Obvious things, like a ladder.
This one isn't all that impressive, I mean ladders are MADE to be climbed. I was more surprised at how quickly and quietly she made it up there, and at how greatly I under estimated the ladder to be an issue :-)
She quickly realized that the ladder elevated her game significantly and the tantrums were prolific after it was put away.