Justin Timberlake and Jessica Biel might as well be the poster couple for adventure travel. These two love vacationing in great outdoorsy places like Utah, Montana, Colorado, and British Columbia. And Biel has even climbed Mt. Kilimanjaro. So what's their honeymoon profile? I could easily see them doing something crunchy, like Costa Rica, famous for its surfing beaches and rustic-luxe rainforest lodges. Or heading down to Peru for some hiking (Machu Picchu, anyone?). But then again, JT loves to golf—Ireland or Scotland might be the right course. And there's always the private island resorts in Fiji, far, far away from the paparazzi. But Britney went that route with K-Fed. Just saying.