The Netherlands, of which Holland is but a part, is
easy to reach from the UK with a choice of sea crossings followed
by a short drive.
Lively Amsterdam is the main attraction, but the towns
of Haarlem, Delft, Groningen, Arnhem, Maastricht, Breda and the
Hague are certainly worth a visit, and for lovely easy cycling
try the Hoge Veluwe National Park.
Don't forget the famous bulbfields, best seen in Spring.
from the list on the left or on the map
or from the list of TOWNS