Daily: 6 a.m. - 6 p.m.
Last entrance to hike the trail: 4:30 p.m.
The gates are locked at 6:00 p.m and you must be out by that time.
Admission per pedestrian: $5
Admission per car: $10
Cash only.
Wikipedia https://ko.wikipedia.org/wiki/다이아몬드헤드산
Official website http://dlnr.hawaii.gov/dsp/parks/oahu/diamond-head-state-monument/
전화 +1 808 587 0300
좌표 21°15'44.181" N -157°48'21.362" E