Pleasant surprise of a short hike. Main Loop is about 2 miles. Going right to left or vice versa it's uphill half and down the back half. Plenty of optional trails along the way if you plan to extend. Trails are well marked and maintained. Cement from the parking lot to about .15 miles and then changes to bed rock and dirt the rest of the trails. Still easily navigable after a decent rain but chances are they close the smaller trails. Decent elevation works up a sweat. I would consider moderate difficulty. Only grind I may have is no pets allowed but it's a nature park so understandable.
Scott B. on Main Loop to Vista Loop to Fern Del Trail
Wanted to let those who are looking for this trail know that it is located within Friedrich Park. Really nice area for hiking and/or trail running. Several different trails with various lengths, terrain and difficulty.