It's off peak entry to ravenswall before 4pm, £10 for non-students and £9 for students. This goes up by £4.50 and £3.50 respectively if you arrive after 4. There are also worthwhile membership options if you see yourself going twice a week or more. No need to bring anything except comfortable clothes& a water bottle - you can hire climbing shoes (essential, £3.70) and chalk (not essential, £2) at the centre.
Hope to see you there!
Yours til my last soul-destroying scroll through a graduate jobs website,
Una