Amazing and fascinating story. I must admit that when I saw the title I thought they were cheating me, because going from Norway to Spain on horseback seems a little extraordinary.
Although you did not do it on horseback, but with your horses, it was definitely an adventure.
You should have seen an almost total contrast between Spain and Norway.
Yeah hehe riding all the way would be a little extreme, even for me! I am thinking of riding one of my horses to Portugal though... Will see! :)