don't bimble around at 2000ft, especially in France, that's the military's playground. Around FL65 tends to be where most light pistons perform most efficiently so that's where you want to be, plus it's cooler up there.
I agree with that! It's certainly cooler up there, and unlike the UK, there is little need to worry about airspace (transits easily given) nor weather (generally little low cloud).
Only thing I would add, is that the Spanish ICAO VFR charts are very difficult to read. I'm not a fan of the Jeppesen VFR charts, but I'd much prefer them to the Spanish ICAO ones.
dp