In message , at 18:40:02 on Wed,
7 Nov 2007, John Rowland
remarked:
I presume we won't be allowed into most of St Pancras when the Eurostars
start running, but are we allowed to explore it now?

The "airside" part of St Pancras is well under half of the lower level
of the new station. Upstairs it's also a little under half, but visible
from the domestic sections.
--
Roland Perry