Acrobatics
Classic fifth-edition (2014) SRD 5.1 rules. The complete rules for this entry are reproduced below for use at the table.
Ability: DEX
Your Dexterity (Acrobatics) check covers your attempt to stay on your feet in a tricky situation, such as when you're trying to run across a sheet of ice, balance on a tightrope, or stay upright on a rocking ship's deck. The GM might also call for a Dexterity (Acrobatics) check to see if you can perform acrobatic stunts, including dives, rolls, somersaults, and flips.