Wonderful trail for jogging and biking. It is an easier to bike it counter clockwise as you have one more long hill going up the road if go clockwise.
As this is a heavily used park, this trail should only be used for casual bike riding. Please do not use it for roadies riding for speed...you won't have a good time and walkers, joggers, unpredictable children and dog walkers will not appreciate you going 20+ mph thru the park!
As the other reviewer mentioned, be sure to stop at the bridge as you are about 99.99% assured of seeing some interesting wildlife. Birds that I've seen at Lake Galena have been...ducks, Canadian Geese, White Geese, Cormorants, Purple Marlins, Cardinals, Robins, Hummingbirds, House Finches, Yellow Finches, Doves, Eagles, Kestrel, Blue Heron, and Seagulls. Many of these smaller birds can be seen at the Nature Center's Bird Blind. Towards sunset you will often see flocks of geese come in and land on the lake; the Heron will often relocate for the evening. Sometimes you will also see the Seagulls or Cormorants lined up on the railings at the dam. You also have a pretty good chance before sunset to see some deer. You can often see them on the creek side of the dam and in some open fields along the roads around the dam on either side.