Air; River cruise Europe Portugal; Spain Porto 2008 - April; 2008 - May; 2008 - June; 2008 - July; 2008 - August; 2008 - September; 2008 - October 8-14 days £500-£999 Only fill in cruise details for cruises. From £899 http://ffi.travelscope.co.uk/grand-river-cruise-from-porto-to-spain-including-the-douro-valley.html