A pack of climbers
Yes, they are excellent climbers.
Holds. (There are sub categories of holds i.e. crimps, jugs, pinches, rails, jibs, slopers etc.) If the indoor wall is designed to look like a natural cliff face (and is not just merely a plywood wall) the holds that are part of this surface are called 'Naturals.'
Half way down the wall.
Antonio Restivo Grimm Alice wall climbers
climbers and twinners
People who help climbers reach the summit of Mount Everest are called 'guides'.
Yes.
gumamela :)
If you are talking about the swirly pole thing, they are called corkscrew climbers.
I learned it was called a hitchhiker's thumb. its when your thumb is bent backward at the top.
They called the Berlin Wall "The Wall of Shame."