I parked in field in Waterloo Village SP, which turned out to be a big mistake. I walked across Waterloo Road to Highland Trail trailhead. The trailhead is wide enough for a car and thereâ??s an open field about 100 yds, which would have been a better parking spot. I hiked to the viewpoint overlooking Waterloo lakes then took a left on an unmarked trail a short distance away from the viewpoint. Ihiked a short distance to the trailsâ?? highpoint and bushwhacked to the summit which I assumed to be a large boulder. I returned to the Highland Trail and continued further to the junction with the Pebble loop trail. I hiked the loop and returned to the parking area via the Highland Trail. I finished around 7pm and the gate to the parking area had been locked. I managed to drive my truck up a muddy embankment and squeezed between two boulders to get out.