My husband needs to make a work trip that will involve travel to Essen, Germany for 2-3 days work 3/23through 3/25 of March '22, then he needs to travel to Madrid to work 3/29-3/31. We are considering arriving a few days early to Germany (this part is flexible), and leaving Spain a few days after his work commitment is finished (likewise, some flexibility here). At this point, there have been no decisions made as to how long to stay where, other that required for his work. We are in our 60's, not triathletes, by any stretch. I was hoping for suggestions as to whether it would make sense to base ourselves around Frankfurt (anticipating arrival at that airport from U.S. for a few days before proceeding to Essen, or just base ourselves in Essen, and settle in for a week, maybe. I would anticipate there being a lot to do in Madrid, so probably no need to have 2 stops there, perhaps? Not entirely sure about the thought of car rentals.
I apologize that I have not “done my homework” yet, so right now I'm just hoping for a few general suggestions to guide my thoughts, or any large caveats concerning travel to/from Essen and Madrid. I will be tracking Covid testing/ infection changes as time goes by. A little nervous on that front. Thank you so kindly for any opinions provided!