Oh, and by the way - images received loud and clear! :) Thank you!

I reckon the "bowls" are natural enough. I can't remember where I saw it - actually I think it was St Nectan's Kieve, where it happened on a MUCH bigger scale! - where you'd get a stone rattling around in the eroded rock, and the more it's rattled around, the more it helps the erosion. It'd go spinning around in the dip for years and years until it's created quite a hole.

Although it could also be to do with the nature of the rock itself for all I know! :D Seems there's quite a few rocks around with this feature, so maybe it's just the way it erodes.

Andwhile I think of it...
Step-by-step instructions on how to upload your pics:

1) The image must be in jpg/jpeg format, and no larger than 720px on teh longest side
2) Make sure you're logged in!
3) Browse to the main page of the relevant site (eg http://www.themodernantiquarian.com/site/298/cheesewring.html)
4) On the dropdown list marked "Add", select "Add an image"
5) Click "Browse" to find the location on your computer that the photo is kept (eg C:\Documents and Settings\goffik\My Documents\My Pictures)
6) Enter the photo credit (ie How yyou'd like your name to appear)
7) Enter a description if you so wish
8) Click "Submit"!

Et voila! L'image est sur l'Antiquarian de Modern! Or summat. ;)

G x