Sacred Falls is one of Oahu's most storied natural wonders, an 80-foot cascade at the head of a deep, narrow gorge in the Koolau Range above Hauula on the island's windward North Shore. For generations it was a beloved hike, drawing thousands into Kaluanui Valley to stand beneath the falls. It is also, today, permanently closed to the public, and that is the single most important thing to know before anyone thinks of going.

On Mother's Day, May 9, 1999, a massive rockslide sent boulders down the gorge walls onto hikers gathered at the falls, killing eight people and injuring more than thirty. The state closed the park immediately, and it has never reopened. Managed by the Hawaii Department of Land and Natural Resources, Sacred Falls State Park remains legally closed, and the geological conditions that caused the disaster have not changed; rockfalls continue in the narrow, unstable canyon.

We are listing Sacred Falls so its history and its status are clear, not to guide anyone in. There is no legal access to the falls. Entering the closed park is trespassing, and the Hawaii DLNR enforces the closure with significant fines and stepped-up patrols. The only lawful way to see the falls now is from the air, by helicopter tour. State officials have said that reopening would be a very complex and difficult undertaking and is unlikely for the foreseeable future.

The valley's cultural weight runs deep. Kaluanui is a place of genuine significance in Hawaiian tradition, associated with the demigod Kamapuaa, and the name Sacred Falls reflects the reverence long attached to the gorge. Respecting the closure is, among other things, a way of respecting the place and the eight lives lost there.

For visitors to Oahu's North Shore hoping for a waterfall or a swim, the good news is that the island still offers legitimate, open alternatives: the Koloa Gulch and Laie areas nearby, the waterfalls of the Windward side reached by legal trails, and the beaches and parks strung along the coast. Choosing one of those over the fence at Sacred Falls is the right call in every sense.

Treat Sacred Falls as a closed chapter to be honored from a distance: extraordinary, storied, and genuinely dangerous. The most respectful thing anyone can do for it is to stay out, let the gorge be, and remember why it closed.