Thanks fo letting me know Richard.
sounds like they'll be some climbing going on next week - regardless of weather..
the only thing I can imagine going wrong is that
A) It rains, so people go to Sunderland wall
AND

I go to Sunderland, but go to the wrong wall (would be just my luck)
Is there only one indoor wall in Sunderland?
and if there is, whats the address?
This should make things idiot proof for me.
Cheers,
Ryan