Experience with volunteering projects? Καθημερινή ζωή και έθιμα

Hi,
do you have any experience with national volunteering projects ? Tell me about it.
What was it like? You would repeat it if you could?
I am very curious because I would like to participate in such program. Can you offer me such a program? Where did you find it?

Thanks in advance

Lovely thread, actually. I’d love to know more too.