Welcome Mattn to the Whisky.com Forum! Right off the top of my head when it comes to light, summer single malt whiskies, these two come to mind - Cragganmore 12 year (although no citrus or orange flavor IMO) and Glenmorangie 10 year. Cutty Sark Blended Malt Scotch Whisky is also an excellent light whisky.
