I'm currently reading "Ilium" by Dan Simmons, his latest in hardcover. If you're an SF fan, Simmons does some killer work in the genre. Even if you're not, Simmons is simply a fine writer, worthy of your time.
"Ilium" is already too complicated at 80 or so pages into it to summarize here, but some of it takes place on Earth in the 40th century, and the few humans left on the planet lead an Eloi-like existence. I'm currently at a part in the book where some of the characters are trying to go to the next Burning Man.
Burning Man is a "Lost Age" ceremony, and it's now run by the "Burning Man Cabal", who hold it at irregular unannounced intervals (a few weeks apart to over a year and a half apart), and always in different-but-remote locations, for five days. The last one was held in Antarctica and drew about 10,000.
The characters are trying to go because they want to re-locate somebody that might have some information they want. Unfortunately the character who met this person at the last one didn't (surprise!) get their name because they were both pretty fucked up (no!), and in any event, he had gone not actually to participate but because he had heard that there were many interesting young women who go, and because he had heard that they have orgies on the final night.