Chapter 9 / 10 Update:
The Lanherne Celtic Cross at St Mawgan 

 You can find the wonderful 10th century Lanherne Celtic Cross in the village of St Mawgan close to the church, in the grounds of the convent. There is public access to this cross by a small sign-posted footpath cross the road from the Falcon Inn. (You can see the path from the road outside the Falcon Inn in the photo- bear right when you are in the grounds of the convent: the cross is near the wall that is opposite the door of St Mawgan Church.)
The cross was made from a single piece of soft Pentewan Cornish stone, and is one of the most beautiful of the elaborately designed crosses in Cornwall.
This cross was brought to this site for safe-keeping in the late 18th / early 19th century from The Holy Well of St Gwinear at Roseworthy, at Gwinear, near Hayle.  The story of this important saint is outlined in Chapter 13 of the guidebook.