Huge waves crashed down on this tropical paradise, pounding the white sands of Summerland Key with brute fury. Then came bomb-blast winds as Hurricane Irma slammed ashore.

For survivors John Hartman and Mae Skiver, the worst was yet to come as they sheltered in a friend's house, utterly at the mercy of the monster storm now thrashing this slender island chain.

Damaged homes near Marathon, Fla., Tuesday, Sept. 12, 2017, after Hurricane Irma. Florida is cleaning up and embarking on rebuilding from Hurricane Irma, one of the most destructive hurricanes in its history. (Scott Clause/The Daily Advertiser via AP)

Damaged homes near Marathon, Fla., Tuesday, Sept. 12, 2017, after Hurricane Irma. Florida is cleaning up and embarking on rebuilding from Hurricane Irma, one of the most destructive hurricanes in its history. (Scott Clause/The Daily Advertiser via AP)

The two 27-year-olds both lived in trailers in neighboring Cudjoe Key in this palm-studded archipelago that juts about 120 miles (190 kilometers) away from South Florida across warm waters.

They and other survivors told The Associated Press what they experienced in Irma's monstrous grip.

Hartman and Skiverhow said they watched 10-foot (3-meter) waves churning as Irma approached. As Irma pounded the Keys, even the second floor of their friend's home began to flood. Then the ceiling caved in. Possibly there were tornados, too. The sound was so loud, Hartman says, "it hurt your eardrums."

Like others in this idyllic spot for snorkeling, boating, fishing and laid-backed nonchalance, they didn't believe the eye would pass right over them. But it did.

A home in Duck Key, Fla., sustained significant damage from Hurricane Irma, Wednesday, Sept. 13, 2017. Irma laid waste to beautiful Caribbean islands and caused historic destruction across Florida. (Mike Stocker/South Florida Sun-Sentinel via AP)

A home in Duck Key, Fla., sustained significant damage from Hurricane Irma, Wednesday, Sept. 13, 2017. Irma laid waste to beautiful Caribbean islands and caused historic destruction across Florida. (Mike Stocker/South Florida Sun-Sentinel via AP)

"Nobody did beforehand, but then by the time we (knew), it was too late," Skiver said. Afterward, they emerged to find the homes on either side of their friend's house had their roofs torn off.

After Irma barreled up the Florida peninsula, the two returned to their own trailer homes. Surprisingly, both trailers were relatively unscathed — unlike many others left crumpled and splintered.

Now, like other survivors, they grapple with big questions like how to put their lives back together.

"We don't have food and water in abundance, and all of that stuff's just gonna take a long time," Skiver said.

On Wednesday, the two were out foraging. Their destination: a school where military meals-ready-to-eat were being handed out.

And Skiver had a word of advice for those who left ahead of Irma: "Don't come back. At least (not) for a long time."

Officials aren't sure when residents of the middle and lower Florida Keys will be allowed back. First workers need to scramble to get power back and water running.

LA City Fire Department FEMA California Task Force 1 go house-to-house Tuesday, Sept. 12, 2017 looking for residents in a community on Cudjoe Key, Fla. where Hurricane Irma's eye made landfall. (Taimy Alvarez/South Florida Sun-Sentinel via AP)

LA City Fire Department FEMA California Task Force 1 go house-to-house Tuesday, Sept. 12, 2017 looking for residents in a community on Cudjoe Key, Fla. where Hurricane Irma's eye made landfall. (Taimy Alvarez/South Florida Sun-Sentinel via AP)

Palm Beach County Fire Rescue spokesman Jeremy Hurd, who was in the Keys helping out, said officials want to make sure infrastructure is in place before they let island dwellers return. Six locations have been set up to distribute food and water to those who stayed behind when thousands fled.

Hurd said more than 300 power poles are down, and officials are concerned that fires could be started as they try to restore power. Gasoline supplies are still a problem the further one goes toward the lower Keys, where many gas stations are damaged and not working anyway.

Dan Border, 67, rode his bike from his home to a school on Sugarloaf Key where Florida National Guard soldiers were handing out MREs and water Wednesday. He remained haunted by seeing Irma's eye pass right over his home.

"It was dead calm in the eye for what seemed like over an hour," he said.

Border had a working generator but was running out of fuel. He siphoned some out of a jet ski and hoped the soldiers would have some gas. They didn't.

"Not being able to communicate with my family is the worst part. They saw the news and everyone saying it was total destruction and we're thinking 'Dad's dead.' They lived with that for days." Finally a wildlife officer loaned him a satellite phone and he made contact with the outside world.

Further toward the mainland on Marathon Key, a grocery store had opened under police guard by Tuesday, but residents could only buy 20 items each, and no cigarettes or alcohol. So said 70-year-old retiree Elaine Yaquinto.

Her home with new storm shutters on the bay side of Marathon survived, but she had no electricity or effective running water.

Still there was a trickle of cold water — good enough for a shower.

"It made me feel like normal," she said.

Yaquinto sat in her Cadillac across from the Marathon airport listening to recovery updates on a local radio station powered by a generator. She said she had yet to see any state or federal agencies or utility companies working on the ground.

The Coast Guard has delivered water and hundreds of pounds of food, blankets and hygiene items to the Marathon airport as aid workers struggle to fill the gap. "Our cutter crews have been working around the clock," says Capt. Jason Ryan, Chief of Enforcement for the Coast Guard's Seventh District.

A mobile home rests on its side at Venture Out Condominium Community in Cudjoe Key, Fla., Tuesday, Sept. 12, 2017 where much of the mobile homes, RVs and stick houses were damaged or destroyed by Hurricane Irma. (Taimy Alvarez/South Florida Sun-Sentinel via AP)

A mobile home rests on its side at Venture Out Condominium Community in Cudjoe Key, Fla., Tuesday, Sept. 12, 2017 where much of the mobile homes, RVs and stick houses were damaged or destroyed by Hurricane Irma. (Taimy Alvarez/South Florida Sun-Sentinel via AP)

Irma roared in Sunday with 130 mph (210 kph) winds, a major hurricane. Rooftops of luxurious multistory waterfront homes along this stretch of the Keys now look as if they'd been peeled away by can openers. Every power pole has been snapped. Boats like the Keys Please now rest on dry land, heaved ashore by Irma. Condominiums are battered.

Nevertheless, some local officials say the damage doesn't appear as bad as one preliminary estimate from the Federal Emergency Management Agency that a quarter of all homes in the Keys were destroyed and nearly all the rest were heavily damaged.

"Things look real damaged from the air, but when you clear the trees and all the debris, it's not much damage to the houses," said Monroe County Commissioner Heather Carruthers. Her county covers the entire Keys.

In Key West, the Southernmost Point Marker of the "Continental U.S.A." — which faces the sea — was scarred to bare metal in spots by Irma's battering.

A few people rode bicycles down Duval Street on Wednesday, but only two bars were open. The city of Ernest Hemingway fame was devoid of tourists, who flock here in good times to party and carouse.

Angel Majors said she appreciated the quiet, despite the power outage at her Key West home. Besides, she was getting to eat like a tourist: One bar offered all-you-can-eat stone crabs and lobster for $10 on Tuesday night, and Back Bar offered stone crabs for free Wednesday.

"Us locals love it. We love our tourists, but it's kind of refreshing," she said.