HONOLULU (HawaiiNewsNow) - North Shore lifeguards rescued 12 people on Thursday as surf with 20-foot faces pounded shorelines.
Most of the rescues were at Ehukai Beach Park, officials said.
Meanwhile, lifeguards rescued nine people on west-facing shores.
A High Surf Warning remains in effect for north- and west-facing shores of Niihau, Kauai and Molokai and north-facing shores of Oahu and Maui through Thursday night.
Surf peaked Thursday morning, but remains dangerous.
As a result of the monster waves, officials on the Big Island have closed the following beaches: Laaloa Beach Park, Kahaluu Beach Park, Kua Bay, Hapuna Beach, Mauumae Beach and Kaunaoa Bay.
Lifeguards on Oahu are urging beachgoers to keep a safe distance from shore. Only experienced surfers should enter the water.