The trails at Hayes Arboretum are well maintained and are 7.5 miles total. The park has a wooden berm turn, 3 tree gable wooden features, table-top, road jump/pier drop, step up pier drop, 11 wooden bridges, 4 log features, and a 3 acre pond. It also has a hand-crafted bike rack and an air pump at the parking lot. The trails are situated in town near many restaurants, banks, and gas stations. Hayes' trails are also centered between Hueston Woods and West Woods; both are ~20 minutes away, so make a day of it and visit all 3 trail systems.
The full loop of the park is made up of four separate but connected trails. Each trail becomes progressively more difficult. From the trailhead, you begin on the Blue Trail and then transition to the Yellow Trail, Orange Trail, and Red Trail. The trails are clearly marked at turns and intersections.
If you haven't been out on the trails for a while, the park has recently completed a 3/4 of a mile extension to the Yellow Trail that includes bermed turns and elevation changes. We also recently added .3 of a mile to the Orange Trail. Last year, the park added the Red Trail to create a closed loop course with many features and 2 additional miles to the length.