Anonymous wrote:Montreal and Quebec City
San Francisco
Ireland
Anonymous wrote:Seattle and highlights of Olympic National Park is very doable in a week. We did this in July in 9 days, but were visiting family and also tacked on Mt St Helens. It was a wonderful break from DC weather. You could do 2 days (plus arrival afternoon) in Seattle and then take the ferry over to ONP for 3 days (or vice versa). Or you could go to Mt Rainier for 2 days.
Joshua Tree is amazing, but will be VERY hot in August. Average high is 99 and there's no shade.
Flying to London in August is pricy, so I'd personally want to wait until I could spend more time there. Would also depend how your family deals with jet lag (my kids have a rough time adjusting which would mean we'd be leaving just as they got used to it.)