Crashing through foliage under the squawks of bats and lorikeets as you climb Mundo Perdido (1775m) – which translates to 'Lost World' – is one of the country's highlights. The view of sunrise from the grassy plateau near the top (1380m) is worth the 4am wake-up call. Local guide Xisto (7786 7272) charges US$10 a group. The starting point is near Ossu, 20 to 30 minutes from Loi Hunu. From there, the 6km hike takes two hours return.