Update (18th Feb 2013). There's now 1 space available for this. Time/date = Tuesday 26 February 7pm > 9pm.
Original post follows (ignore voucher and date info, as that is now obsolete):
Link for tickets: http://www.groupon.co.uk/in/,16410072 (Groupon - link expires midnight Jan. 23rd. So get on it, if you want to come :-) ).
* Climbing wall inside grade II listed St Werburgh's Church
* Regional Centre of Excellence
* 12-metre high climbing wall
* Taster session
* Roped wall climb and un-roped boulder scramble
* Sessions last around 90 minutes
See link above for finer details, small print, directions to venue, etc.
The voucher is only good for Monday night climbing (6.30pm-8pm). We'll arrange a convenient Monday for us all to go together, or a couple of dates if not everyone can make the same date.