Climb Walls

The player can now scale walls and cliffs. This means during sieges, players can climb over walls in order to infiltrate the interior of castles or other buildings. 

Phys Rep

 In order for this skill to be put into effect, the player must crawl 10' to simulate climbing and may then enter a structure or cross an obstacle in a safe location. A rope may be tied to the wall or location to allow others to follow.

Limitations

Not all obstacles can be climbed for safety reasons. Characters wearing metal armor or over encumbered for their max AP may not benefit from Climb Walls, even if a rope is provided.