With the season 13 debut of CBS’ The Amazing Race looming on September 28, executive producer Bertram Van Munster dished on a few clues about the upcoming globe-trotting bonanza to Entertainment Weekly ...

• The race takes 23 days, covers nearly 40,000 miles on five continents, and features some far-flung locales never before seen on the show, including Angkor Wat, Cambodia and La Paz, Bolivia.

• The youngest team is a tandem of guys in their early 20s. “They’re made for television,” Van Munster says. “They’re supersmart — and they make terrible mistakes.” A pair of recent divorcees in their late 20s also vie for the prize. “They were left with some financial debt, so they really have a motive to run around the world,” he says.

• Expect a serving of granola — this time with a husband-wife squad of 60-something Oregon hippies. “They’re the real thing,” says Van Munster. “They come right out of the '60s. To a lot of people, it looks almost like they’re from a different planet.”

• As for the challenges, “We’ve really outdone ourselves in the department of outrageousness,” Van Munster declares. “We have a situation in Bolivia where we have the [contestants] go down a cobblestone hill on very, very primitive bikes, and it’s just the most hilarious thing you’ve ever seen in your life. It’s a truly bone-jarring experience.” Another must-see detour: A by-train-or-by-bus scavenger hunt in Moscow.
  

• The producers didn’t predict the winner. Says Van Munster, “We’ve been wrong every time, across the board.”