These shots are of the Irondequoit Creek in Channing H. Philbrick Park (formerly Linear Park), in Penfield, NY. If you park in the main lot off Route 441, a nice little 5K can get done by running the length of the trail down to the Tops parking lot, then back up. You'll need to run up into the wooded part of the trail east of the parking lot to get the distance in.
There are some interesting artifacts and features in the portion of the Irodequoit Creek that the trail follows. Most can be attributed to the mills that used to operate on the Irondequoit Creek in this area. The fast water currents on this portion of the creek were ideal for this purpose. A friend of mine told me that the partially exposed tunnel seen in the upper right of the second picture above was used as an escape route in the Underground Railroad, and that the tunnel makes it's way up to a house on the hill behind the creek.. An intriguing possibility, although it is just as plausible that this was some sort of spillway or tunnel used by a mill. (Click on the pictures to enlarge.)