Henninger Flats is a 6 mile out and back trail located near Pasadena , California that offers scenic views. The trail is rated as moderate and primarily used for hiking. Dogs are also able to use this trail but must be kept on leash.

The hike to Henninger Flats is on a fire road with no shade. Therefore, hike very early during the summer. There are nice views of LA if you happen to hike after a rain storm or a windy day.

Scenery is nice when you reach the Flat. There is a Nature center, a picnic area and public campground set amid trees.