Rough seas thwarted attempts by rescue personnel Friday to recover two bodies floating off Kauai’s North Shore, on a day when high surf and strong currents prompted the closure of Kauai beaches and more than 2,000 safety actions by Oahu lifeguards.

A high-surf warning by the National Weather Service is in effect until 6 a.m. Sunday for the north- and west-facing shores of Oahu, Kauai, Maui, Molokai and Lanai and the west-facing shores of Hawaii island.

A high-surf advisory is in effect for the west-facing shores of Lanai and Kahoolawe for the same period.

Rescue personnel planned on resuming attempts this morning to recover the two bodies, which were spotted at about 5 p.m. Friday by visitors in waters below a cliff near South Kalihi­wai Point.

A Fire Department helicopter and Coast Guard vessel could not recover the bodies because of difficult ocean conditions and called off the search at 6:35 p.m., a Kauai County news release said. Rescue personnel said the bodies appeared to be lifeless and were seen in the water for about 40 minutes. Their identities were not known.

On Friday morning, Kauai officials closed all North Shore beaches because of high surf and strong currents.

Oahu lifeguards performed six rescues and took 2,130 preventive actions as an unusual long-period northwest swell brought high surf to north and west shores.

Five of the rescues took place on the North Shore.

At Makaha Beach a 69-year-old man nearly drowned after getting in trouble while swimming at about 4 p.m., a city spokes­woman said. Ocean Safety personnel brought him to shore and performed CPR until paramedics arrived. The man was taken in critical condition to a hospital.

Forecasters predict waves up to 30 feet on north-facing shores and 20 feet on west-facing shores. Infrequent large surf is also possible on other shores.