Athletes are Jungle Trekking this Fall

Thailand, Hawaii, and 3 more tropical destinations for the fit set.

In some of the most beautiful, untainted places around the world, fit bodies are burning calories, strengthening muscles, and coming face-to-face with wildlife. Jungle trekking is hotter than ever, thanks to the rise of adventure travelers and famous thrill-seekers like Bear Grylls proving the exotic landscapes are as rewarding as cities and beaches. Here, five to add to your travel bucket list.