A 17-year-old visitor was injured Thursday while apparently hiking illegally in the Sacred Falls area, prompting the Department of Land and Natural Resources to issue a reminder that the area is still off-limits due to hazardous conditions.

The boy was hiking with an 18-year-old woman, also identified as a visitor, and a 17-year-old local male when he apparently fell some 20 feet off the trail.

Honolulu firefighters assisted the three out of the valley. The injured boy was taken to an area hospital with non-life-threatening injuries.

Sacred Falls State Park has been closed to the public since Mother’s Day 1999, when eight people were killed during a rockfall. DLNR officials said rocks continue to fall in the area and people who enter the park illegally put themselves at risk of injury or death.

Although "Park Closed" signs are posted at the park gate and along the once-popular trail, DLNR Division of Conservation and Resources Enforcement continue to cite trespassers for entering the area. DOCARE officials are reviewing the case to determine if citations are warranted.