Did this in July 2005 in a PA28
Biggin-Antwerp(dump)-Braunsweig-THF-Bremen-Ostend-Biggin
Round trip flight time 13hours
With the exception of Ostend which now cannot stand GA as some of the major carriers operate from there (Tommy Cook is one) they have no need for us to support them any more, all other places were cheap for landing and fuel especially Braunsweig (EDVE) well worth a visit also the German ATC for those who have had no experience with is worth the trip alone they certainly got their services act together
TBE