Air; River cruise Europe Portugal Porto 2008 - April; 2008 - May; 2008 - June; 2008 - July; 2008 - August; 2008 - September; 2008 - October 4-7 days £500-£999 Only fill in cruise details for cruises. From £699 http://ffi.travelscope.co.uk/porto-salamanca-and-douro-valley-river-cruise.html