Sail and paddle down river.

July 27.

The water has begun to be clear and sunny, revealing the fishes and countless minnows of all sizes and colors, this year's brood. 

How easy for the young ducks to hide amid the pickerel-weed along our river, while a boat goes by! and this plant attains its height when these water-fowl are of a size to need its shelter. 

H. D. Thoreau, Journal, July 27, 1860 

The water has begun to be clear and sunny. See July 28, 1859 ("The season has now arrived when I begin to see further into the water, -- see the bottom, the weeds, and fishes more than before.”); July 30, 1856 ("The water is suddenly clear. . .All the secrets of the river bottom are revealed”). See also A Book of the Seasons, by Henry Thoreau, The Season of Sunny Water