Calias was fantastic. He was very friendly, personable and knowledgable about Scottish history. He accompanied us into the Stirling Castle and pointed out details about the architecture and all the symbolism we would have missed with audio tours. He works with movies so he would share facts about Scotland and the cinema. We even saw the castle used in Monty Python, and Game of Thrones. I would highly recommend this tour and Calias as your tour guide.