@Maximus - I like pictures of the UK ribbing. Nature, clear Sea.
But I was looking last year at UK weather ...
Sorry - not my climate (temperature, rain, Sea temp. ...).
OK. TO Croatia I have 1400 km. To Graz 850 km. It took me 10-11 hr of driving from Warsaw to Graz with break for dinner, petrol, ... .
Next day 5-6 hrs from Graz to Tisno - highways only. I'm not young or master driver.
I towed trailer first time in my life in 2015 (I made in 2015 special drive licence B96 for that).
For me (and family) this trip to Croatia is really nothing even for 1 week (we started at Sat and started returned trip at Sat also)
To Trieste I have very good highways also (it is 1100km) and I made it at once driving slowly about 12-13 hrs. Next step is to relax 24 hrs in the cabin or upper deck ferry going to Greece.
But of course Spain is in range of UK citizens also.
Calais - Lorret De Mar is about 1250 km
Based on my friend experience it is much easier to rent house with swimming pool in Spain than in Croatia or Greece.
For me Spain is far-far away
It is 2400 km.
And to Greece I have 1100 to Triest and do not count ferry Triest -> Greece (it is relax)
But it be very nice to meet in person somewhere with RIB.net people.
My target in 2017 is to meet @Jeff in Paxos.