Batgirl Salmon Ladder

This shows Batgirl (Cassandra Cain), with a mysterious boy called Damien in tow, ascending a dock cargo crane to sneak onto a ship headed by Bane.

Note how she's doing it: The Salmon Ladder. I've watched American Ninja Warrior a lot, and I know for a fact that the Salmon Ladder easily dispatched a lot of competitors. Basically, Cass is doing what any American Ninja Warrior competitor wouldn't: carrying a person and full equipment.