Hi, I don't know what do you mean by travelling a bit, but if jou can reach south france/north italy or croatia(8-10hours by car), you could find decent dive sites in warm water (almost warm...)
In the picture I include you find
-zone 1: south france and north-west italy --- water is 15-20 Celsius (have to check)good viz, quite a lot of fish nothing too colored but already something big, some wrecks, from small boats to huge tankers.
This is an excellent DC near Porto Fino, some km from Genova
http://www.europeandc.com/
If wanna go for a tour on the haven one of the biggest wrecks in the mediterranenean sea try this
http://www.techdive.it/ nice people they are between italy and france near Ventimiglia
-zone 2: croatia, better prices but more or less the same conditions, also here some big wrecks like Baron Gautsch
http://www.diving.hr/ here you find every DC in croatia
Also sardinia is very nice to dive
The cross is where I live but there is only cold and murky lakes...
If need more info feel free to pm me
Have a nice time in Eu