If you would like to prepare for what you are going to see and do, here are some useful weblinks:
Ehrenbreitstein Fortress and Cable car
More information about your visits - Websites
Boppard
Burg Eltz
Burg Rheinfels
Cochem
Deutsches Eck
Koblenz
Lorelei
Rock and St Goarshausen
Rudesheim