It's a 10-day drunken bash with a bevy of scantily-clad women.
Welcome to spring break for the 40-something set! INSIDE EDITION was there as 70,000 people, you heard right, 70,000 gathered in Key West.
Body paint actually passes for clothing here. Some older women are completely naked underneath the paint. Some compete in a body paint contest.
One cell phone video captures an extraordinary scene: hundreds of the over-40 crowd jam-packed in a pool for a wild party, clothing not required. We even spotted revelers mud wrestling.
"When you're 42, and you're divorced, it's time to just break out," said one hot mom.
INSIDE EDITION's Megan Alexander caught up with Monica Baker, who sells cars in Indianapolis and left her two teenagers at home to strut her stuff in Key West.
"This is spring break for me because when I was in my early 20s, I was raising kids," Baker said.
The annual celebration is called Fantasy Fest.
It all culminates in a provocative parade, where the older crowd really sexes it up. Some are dressed as Britney Spears or Lady Gaga. Clearly, at this party, all that matters is being young at heart.