The are many trails in the park to lead the biker across wooden bridges, over streams, along the 150 foot high bluff, or down to the water’s edge past a unique geologic feature known as the blowhole. Here one can hear the wind as it whistles past the bluffs. The Native Americans came to listen to the "wind being caught by the spirit of the earth." When the colonists arrived they called it Devil’s Blowhole, believing it was an act of Satan. Sailors knew it as an area of quick winds as the park is just upstream of one of the tightest bends on the lower river.