In reply to bouldery bits:
Very good spot. There's a guide on the following link, which covers most of the easier problems:
http://www.suesseals.eclipse.co.uk/Godrevy%20bouldering%20pdf.pdf
The harder stuff is reasonably covered in the Boulder Britain guide. Personally, I prefer warming up in the gullies and heading over to the bowling alley area after. St Ives wall has some dodgy landings!
2hrs either side of low tide is best, with an onshore breeze to dry the rock. Enjoy, it's a cool place!