On a clear day in a sunny desert, this ought to generate sufficient concentrated radiant energy to power a plasma engine. (newscientist.com)
For me though I just love the coastal walk and the views out to sea and often come here on a clear day with a packed lunch and enjoy watching the world go by. (journeytom.com)
But you can see all the way to the ocean on a clear day. (bonappetit.com)