We are 4 senior ladies who spent 2 days with Natalie. 1/2 day exploring the main sights in Berlin and the next day she took us out to Sachsenhausen Concentration Camp. I had no idea how little I knew about Berlin until Natalie educated us. She is a wonderful tour guide. We saw all the highlights of Berlin and her knowledge kept us captivated. The camp was very sobering - she gave us all the facts. We were extremely impressed and lucky to have had Natalie for both these days. We would definitely recommend her .