For easiest searching and orientation. All the spots on it are also under 'Places' on this site.
Some sites require this; others don't. Confirm with the group you will be working with.
Good overview of what to expect as a volunteer -- mental prep, rather than logistical. Compiled by Campfire Innovation.
This main document provides all the basic info for volunteering at Katsika.
Facebook group for coordination
All pins from this site in Western Greece on a Google Map.