Lost Valley Trailhead is one of the popular hiking areas in Kingston. This 1.9 miles of out and back trail gains an elevation of around 240 feet. It will take you to the Edan Falls and has a cave at the end. Remember to pack the headlamps if you want to explore this cave. Open throughout the year, you can come here for walking, nature trips, and birdwatching. Lost Valley Trail attracts many on weekends. So, if you are looking for a peaceful hike, consider going there during weekdays.