We did the medieval castles kayak tour. To be honest we didn't visit more than one castle but what a wonderful experience. Alex and Savvas...thank you...so mindful of our safety and preferences at all times. Both are so knowledgeable...obviously well acquainted with the history of nafplio...was a real pleasure. They went out of their way to accommodate us. Also they changed the day because of something and offered a 20% discount for that. Was really sweet. And allowed us an extra hour to swim in the sea. Great job!