Andy and Anne,
You are always so helpful and I appreciate the time you take to respond to my questions. We are looking at Berlin Walks and someone gave us the name of a private guide, Jeremy. We are still debating what we will do.
In addition, saw a couple of day trips to Pottsdam. Since we are only there for 1.75 days trying to evaluate if this would be feasible.
Once again, thank you for your valuable info.
Safe and happy travels to you!