Sooo Bad! It is hilarious!
Don't think any of these people had climbed before (or possibly acted).
The plot line is thin and makes little sense, Continuity is laughable. Walking boots/climbing shoes/walking boots etc.
The main villain is way over the top how the other three managed to make the car journey with him at the start without throwing him out let alone the rest of the film is beyond me.
The "rock" is obviously fibreglass for most of the film.
If you like to watch really bad films because it's hilarious how bad they are then this should be right up your street. I mean come onto who ties onto only one anchor with a figure 8 and clips onto their harness with a screwgate and a clove hitch! Absolutely ridiculous!