One great trip for a week it's Scotland with the Isle of Skye...This is the web about the Isle of Skye,
http://www.skye.co.uk/default.php,
And for example you could ccross scotland through the " Hadrian's Wall"
http://www.hadrians-wall.org/Plan_Walking_Info.aspxhttp://www.cycle-routes.org/hadrianscycleway/About Iceland I can tell you after I come back in August....
Silvia