Athletics

Anything that the GM would consider athletic, as in something that would require physical strength to achieve that doesn't fit other types of action sub-types, is considered a Special Movement or its own kind of action.  This could be something as simple as pulling oneself up after dangling off of a cliff.  If the GM considers a specific action or movement an athletic feat, then the GM may set the challenge rating of said feat and the character rolls Strength against it.