Although tour and guide were good, we were very disappointed that it was not as advertised.
Excursion was supposed to begin with a boat ride from harbor to Actinios. We specifically chose this excursion for that reason, to avoid the cable car ride (or donkey ride, or walk) up to Fira. When we arrived, our guide, Simone, claimed to know nothing about the boat ride, and we took the cable car to the top.
Very disappointing.