SumatraNorth Sumatra itinerary and complete guides to Lake Toba, Orangutan Spotting, Sibayak Volcano & Sipiso Piso Waterfall. Lake Toba, Sumatra: Complete Travel Guide to Samosir Island What to do, where to stay and when to visit the beautiful volcanic lake North Sumatra Travel Itinerary: Where to Go & How Long to Stay How to experience the best of North Sumatra, Indonesia in 1 week to 1 month Asu Island Travel Guide: How to Visit This Paradise & What To Expect All you need to know about Asu Island outside Nias, Sumatra (for non-surfers) Sibayak Volcano Sunrise Trekking Guide: How to Hike With (And Without) A Guide What to expect visiting Mount Sibayak volcano near Berastagi in North Sumatra Sipiso Piso Waterfall Travel Guide: How to Visit & What To Expect All you need to know for visiting Sipiso Piso Waterfall near Berastagi in North Sumatra Orangutan Jungle Trekking in Bukit Lawang: Complete Travel Guide How to ethically spot orangutans in the wild in North Sumatra, Indonesia