JACKSONVILLE, Fla. (CBS) A long line of evacuees inched south on U.S. 1 for a first look at Irma's destruction in the Florida Keys.
Officials allowed upper Keys residents back Tuesday. But they are keeping people out of the lower Keys while they make emergency inspections and repairs.
In Marathon, residents who stayed behind are checking on neighbors.
"A lot of them left town. Those here are still alive. One friend lost a boat," said Carl Spavold of Marathon.
The view from above shows the island chain took a devastating hit from the Category 4 storm. Most of the area has no power, water, sewage or fuel.
More than 400 miles away, Jacksonville is trying to dry out. Irma swamped the city with record flooding, more than 350 people had to be rescued.
"First responders just stepped up and did their jobs, neighbors helped each other," said Mayor Lenny Curry, R-Jacksonville.
Water is still blocking many streets, but city officials are allowing residents and business owners to get in and tackle the cleanup.
"We had sandbags out, but that didn't do anything," Shauna Austin said.
Austin spent the morning getting the water out of the dry cleaners where she works.
"Everybody's OK, we just have to do some cleaning," she said.
Millions across the state are without electricity.
"We understand what it means to be in the dark, we understand what it means to be hot and to be without air conditioning," said Rob Gould of Florida Power and Light.
Florida's largest utility is getting plenty of help from out of state but says it could take 10 days or more to restore power in the hardest hit areas.