In reply to trythis:
?
Any chance of a bit more info please?
Is it ... Eeek! take! there's a (spider/ mouse / rat / bat / slug/ a hairy caterpillar / lizzard/ snake / fish, on the next crimp / jug, and i'm terrified! Abandon route!
... are we all prey if we go there? Do they bite / sting / tickle / shoot things at us / jump on us /fall on us + go down yr vest or tangle in yr hair?
Are some people dangerously allergic to them?
Is it just one kind of caterpillar?
What do they look like?
How quick do they move?
Do they live on the crag, or fall down from veg up the top?
Are they a protected species?