Every so often, Mother Nature shows off her raw and unforgiving power.

In Hawaii, that force has been on display all week, thanks to a pair of gigantic, back-to-back swells, which generated waves large enough to overtake beach parks, wash across roadways and damage oceanfront properties.

"We're seeing very, very huge wave heights," Honolulu Mayor Kirk Caldwell said this week. "We're seeing very dangerous situations."

The initial swell brought wave faces of up to 70 feet in certain areas Monday, Hawaii News Now reports. A stronger-than-usual El Niño was fueling one of the strongest surf events in Hawaii in 50 years, according to the National Oceanic and Atmospheric Administration.

In an unprecedented move, state officials shut down a 12-mile stretch of Kamehameha Highway, on the north shore of Oahu, in response to ocean surges that washed over the roadway.

Danger Zone #northshore #oahu #bigwaves #rockpiles A photo posted by @northshoreoahu on Feb 22, 2016 at 6:05pm PST

Despite numerous beaches being closed, lifeguards were kept busy, rescuing dozens of people and issuing hundreds of warnings, the Honolulu Star-Advertiser reports.

The historic event also wreaked havoc on oceanfront properties, including a home on Oahu that all but toppled into the ocean.

Still standing... Last chance to save the house. #elnino #brockswell #eddiewouldgo #northshore #sketchyspottotakeapic A photo posted by B W (@bigmtnbill) on Feb 24, 2016 at 12:11pm PST

If Monday's pounding swell wasn't enough, the National Weather Service warned Wednesday that another followed close behind. On north-facing shores, surf was forecast to rise rapidly from Wednesday and reach heights of 40 to 50 feet through Thursday.

But the potentially perilous one-two punch had the Hawaii surf community abuzz.

Just two weeks after being forced to call off the legendary big wave surf contest "The Eddie" because of unfavorable conditions, event organizers gave the contest a green light for Thursday. If conditions were to hold up, it would mark the first time the prestigious event has run since December 2009.