Some section borders with Height values can be climbed. In order to climb without using any special abilities, an entity can perform an Acrobatics roll against the border as part of a Move to attempt to climb. Each successful roll results in traversing Height 1 unless otherwise specified. Until enough Height is traversed to overcome the border, the entity is climbing and subject to the following rules:
A climbing entity that wants to stop climbing can choose to fall as a Move, suffering any resulting falling damage.
Some Obstacles have the Climbing keyword. Such Obstacles typically also have the Persists keyword. These Obstacles represent surfaces that the PCs must climb in order to traverse.
If a Climbing Obstacle's Reaction takes effect, the entity playing the corresponding Action suffers falling damage in addition to any other effects listed on the Reaction. See Height for more information on falling damage.
When attempting to traverse downward, an entity may simply Move as if a Climbing Obstacle were not present, but suffers falling damage in the process.