Nothing in life is free

One disadvantage of running at sunup or sundown is there are lots of small moths, insects or what ever they are that hit your face and get into your eyes. They hover in clouds near the bank of the river. They are larger than gnats and are a whitish color instead of the dark color of gnats. Most of the Parkway trail is far enough from the river bank that these things aren't a problem, but in a few places the trail gets close to the river and goes through clouds of these things. Ahhh... the price of a great run!