David was a fantastic tour guide! He met us at the pier and we were off! First we walked the Royal Mile with David telling us stories and pointing out interesting sites. We walked the whole mile, then back to Holyrood Palace. He waited while a couple of us explored on our own. He had snacks and beverages (hot tea, coffee, soda - more on that later, and WHISKEY!) We were supposed to go to Rosslyn Chapel, but after chatting with us, we decided that Stirling Castle would be better. He was SO right!