That ash settled over thousands of years, and today, Diamond Head State Monument's ridgeline ... But keep in mind that this natural wonder is one of Honolulu's most popular attractions, so ...

A 31-year-old bicyclist is in serious condition after crashing into the gate at the entrance to Diamond Head State Monument, according to Honolulu Emergency Medical Services.

HONOLULU (KHON2) — Waikiki Elementary students, parents, and faculty joined together at Diamond Head State Monument to unveil and bless a new educational kiosk. Get Hawaii’s latest morning ...