[Skills help] climb

Automatic

Climb allows you to cross mountains and cliffs in the wilderness,
although cliffs and snowy mountains are harder to cross than regular
mountains.  Climbing can be hampered somewhat by loss of limbs or the
presence of a rider on your back.  If you are mounted, only the climb
ability of the mount matters - you will be carried along based on 
whether or not your mount succeeds.

When you fail a climb check, you are likely to fall.  The worse your
climbing skill, the more likely it is that you will fall farther.
Falling causes damage proportional to the distance you've fallen.

See also: swim