When I failed to see orangutans in Borneo, I went to Sumatra because these are the only two places in the world where you can see wild orangutans! And when I landed in Indonesia, I booked a 2 days jungle trekking tour with @Sumatra Orangutan Trekking Not only was it an incredible experience but they are an ethical trekking company. They are dedicated to preserving the natural habitat of these magnificent creatures while offering a responsible way to witness these majestic creatures in the wild.