b'The SumatraTrekking Challenge7 Days / 6 NightsGet into the wild and experience Sumatras naturalbeauty. Take a challenging five-day hike throughGunung Leuser National Park, working up a sweatwhile journeying through dense jungles, pristinerivers and rugged mountains. The hard work pays offwith incredible wildlife encounters and memorablenights under starlit skies. HighlightsTrek Gunung Leuser National ParkEncounter orangutans at a conservation projectand possibly in the wildSpend four nights camping, immersed in natureExplore wild jungles and riversWhitewater raft the Wampu River'