The Park Predators podcast trailer opens with the peaceful sounds of nature. Birds chirp, creeks burble, and leaves rustle in the breeze. The opening lulls listeners into the peace and grandeur of the natural world. But humans make this world dangerous in ways nature lovers do not expect. Hikers learn how to watch for those who might harm them. Bears and mountain lions are the usual suspects. But there are other dangers.

Park Predators host Delia D'Ambra tells frightening stories of human predators and prey. Cases on the show take place in North America's national parks and beyond. Serial killers are the obvious suspects. Yet loved ones often commit these heinous crimes. Nature's serenity can hide the human danger that lurks in the shadows.

This true crime podcast promises listeners harrowing tales. As an investigative journalist, Delia knows how to search for the truth. In Park Predators, she uses this skill to analyze cases that have haunted the nation. Listeners may know her from other similar podcasts. These include CounterClock, Dark Arenas, and Crime Junkies.

Delia reveals the secrets behind recent crimes and cold cases. Tragedies occur from Wayne National Park to the African Congo and everywhere in between. The horrific crimes in their own nearby parks might alarm listeners. One episode tells the story of backpackers in the Australian highlands. Fellow hikers found bodies protruding from shallow graves. The number of actual victims remains a mystery. But serial killer Ivan Milat destroyed the lives of at least seven young adventurers.

Another grim but fascinating tale reveals the horrific murder of a Canadian couple. A killer shot the park ranger and his wife right outside their mountain home. Despite 90 years of effort, the police could not find the suspect. In this episode, Delia investigates a longstanding rumor. Police still think the suspect himself ripped pages out of an important journal. Where are these pages, and did the killer take them? What revelations do they hold? Answering these questions and more, Park Predators captivates listeners from start to finish.