DLNR closed Hapuna Beach State Park Friday after a diver found an ordnance in waters offshore.
The diver brought the object ashore to the park concession area.
Hawaii County Fire Department and Police Departments were notified and DLNR Division of Conservation and Resources Enforcement (DOCARE) contacted the U.S. Army Schofield Barracks unexploded ordnance unit.
A team of experts arrived on the Big Island to determine what further action will be taken.
Meanwhile the public was evacuated by County Police and DOCARE and a safety perimeter established around the concession area where the object remains at this time.
The ordnance was taken to the Pohakuloa Training area where it will be disposed.
The park opens at 7 a.m. Saturday.