Mark as done to rate
Reopening for 2026. Hours, dates, and admission may vary — check official site for current details. Last verified: 8/31/2026 Havoc has reached the Nightmare Forest Haunt Parks in Demented Hills (formerly Nightmare Asylum). You may think you are coming in for just a visit, but the hills have other plans. If you’re looking for a haunted experience, then Demented Hills is sure to leave you seeking treatment!
- Scary
