He's standing. Good. A broken limb would make things substantially more difficult - Horatio learned as much during his brief time as a ground combatant in Muzillac, and it's not a struggle he cares to repeat.

He frowns and furrows his brow in thought, glancing at the walls of the ravine upstream and downstream in search of a better place to climb than this one. Almost all of the ground looks quite weak, but there's a small section of woody roots on one side of the gulley about 4 meters back, and he imagines they will probably hold - provided the Doctor can get enough traction at the base of the wall to reach them.

Horatio inclines his head in that general direction. "Over there - do you think you can reach that mass of roots?"