HONOLULU (KHON2) — Visitors planning a hike up Diamond Head next month will want to double-check their calendars. The popular Oahu landmark will see additional full-day closures in June as crews continue rockfall mitigation work.
The state Department of Land and Natural Resources (DLNR) announced that Diamond Head State Monument will be closed to the public from June 17–20 and June 24–27. During those dates, no visitor access will be allowed into the park, including the summit trail.
The closures are part of an ongoing safety project led by the Division of State Parks, aimed at reducing the risk of rockfalls in the heavily visited crater.
Park employees will still have limited access via the Kapahulu Tunnel from 6 a.m. to 6 p.m. during closure days, and a security guard will be stationed at the tunnel entrance.
On Monday, June 16 and June 23, the park will operate under partial closure hours from 6 a.m. to 2 p.m. For the rest of the month, the park will follow its regular schedule: weekday closures at 2 p.m. and weekend closures at 6 p.m.
DLNR officials thanked both residents and tourists for their patience as the project moves forward, emphasizing that the end goal is to make Diamond Head safer for everyone.
The work is expected to wrap up by July 25, 2025.