We have seen a lot of both. Both remind me of Southern California.
Anyone who grew up in Southern California knows the distinctive smell of eucalyptus trees. It is always great to smell it again. They are messy trees and are terrible in a yard but out in the forest they are apparently good trees. They have them all over Spain and Portugal. They originated in Australia.
I guess the Northern Coast of Spain is warmed by the Gulf Stream enough to avoid freezes because there are lots of palm trees here. Often in pairs, for some reason.
I remember them mostly at Cal, where there was a eucalyptus grove with a small stream running through it. Such a peaceful place in the midst of a big, bustling campus. It smelled so good, especially when the fog came creeping up the Berkeley hills. Just heavenly.