:thumright: HMS Courageous is still on display in Plymouth see text from her Association site:
"In 2002 she was removed from mothballs and moved to No. 3 Dock where she was open to the public as a unique exhibit in the UK. Ongoing problems with the caisson, which seals the dock, necessitated her move back to 3 Basin in 2007 where she is currently once again open to the public."
HMS/m Courageous Site
I did do the visit a couple of years ago and found it to be very brief as basically only the Accommodation and Control room are open to visitors.
Nutty