Welcome to Prionia!
Many people start and finish their hike to Mount Olympus from this area. If you are real outdoors enthusiast you will take the E4 trail from Litochoro to get here. Cache is located very close the parking area and carefully hidden so that it will not be discovered accidentally. Happy hunting!
Small note on cache maintenance: I regularly visit Greece but in the meantime local geocacher asteraki has kindly offered to assist if any issues arise between my trips.