Explore the hidden history under the waters of Pleasant Hill Lake. What happened from Helltown to Newville that caused their disappearances? Take this 5-mile Kayak History Water Trail and learn about the unique over the 80+ year history of Pleasant Hill Lake Park. The Water Trail has 5 stops with interpretive signs noted the historical importance at each location. Don't have a kayak? Not a problem, the marina has a special kayak rental discount for those doing the water trail.