Hemmant Trail is a short (1 km) trail located inside Fraser’s Hill (just a short walk from the clock tower, the trail is next to the golf course).
The entry to the trail is difficult to see if you come from the north, though it doesn’t look like it would be from the photo. If you walk to the start from the clock tower it is much easier to see the trailhead which is will be on your right before your reach the Mosque.
The trail is quite nice and fairly easy.
Related: Pine Hill Trail, Fraser’s Hill, Malaysia – Bishop Trail, Fraser’s Hill, Malaysia – My video of monkeys arguing in Fraser’s Hill