Head right straight to Bremen and spend your time there. I love that city and it is just about right for a couple days. Plan on spending some time in Schnoor and drink some Beck's:
"Not all those who wander are lost.” ― J.R.R. TolkienEdited: 14 May 2018, 12:42
There will be 4 of us and a border collie. All of us love to hike, eat good food, visit markets and historic sites. Thanks for the info so far!