This is me demonstrating a technique for releasing the joint at L5/S1. The class was in 2008/9 for the Natural Health Science School in Athens. (The Greek one, not the USA one.)
The man on the left (wearing glasses) has now become a teacher in Greece, based in Crete. The woman on the front left (in orange) is Despina, our translator in previous years who was so impressed that she decided to take the course herself that year. She had studied Aromatherapy previously. The three women in the background are Jenni, Athena and Maria.