In reply to SI A: Defo Calshot. St Mary's is fairly limited unless it's been updated, knew there were plans couple years back to downsize it, not sure what ever came to be. Sure someone will be along to fill you in. There's a small traverse area upstairs with a small cave. Used to be set mostly with juggy roof routes and the odd harder problem.
Calshot on the other hand has relatively ok bouldering, might have even more since i last went what with the extensions etc.
If you can muster a partner for the St Mary's wall it's worth going, the routes are very short but the featured problems are quality.
