Wrinkled hornbill

Wrinkled hornbill (Rhabdotorrhinus corrugatus)

Especially for twitchers, join us and our expert guides to discover some of the rare and unique birdlife Sumatra has to offer. Please contact us for more information so we can tailor your tour to your requirements.


Wagler’s palm pit viper

Wagler’s palm pit viper (Tropidolaemus wagleri)

If snakes and other reptiles are your thing, join us and our expert guides to discover the secret life of reptiles living in and around the Leuser Ecosystem. Please contact us for more information so we can tailor your tour to your requirements.


Wild flanged male orangutan (Pongo abelii)

Wild flanged male orangutan (Pongo abelii) using a tool to obtain the lipid-rich seeds of the Neesia fruit.

Siamang (Symphalangus syndactylus)

Siamang (Symphalangus syndactylus)


If bats are your thing, join us for a walk to the bat cave in Bukit Lawang.


the world’s largest flower

Amorphophallus titanium

Raffelesia arnoldii is endemic to Indonesia. often referred to as the ‘corpse flower’, this insect pollinated plant gives off a scent reminiscent of dead and decaying organic matter to attract pollinators. Flowering for only a few days a year and reaching up to 1 meter diameter, this parasitic plant is found attached to a host plant where it steals its water and nutrients. By prior arrangement, we can arrange a specialist trek for you to view the flowers in their full glory. Please contact us well in advance so our guides can check the current status of the plants and plan your trek accordingly.



the world’s tallest flower

Translated literally, Amorphophallus titanium means “giant misshapen penis!” Reaching to heights of 3 meters, this titan is the tallest flower in the world. Actually, an unbranching cluster of flowers, Amorphophallus is restricted to a small area in Sumatra, with only a few people lucky enough to see it in bloom each year. When the flower is fully open, a strong, often overpowering smell of rotting flesh emanates from the flower to attract insect pollinators. Once pollinated the titan quickly wilts and dies. Let our experts in the field take you on a specialist trek to a little-known flowering site and you can be one of those lucky ones to see this vulnerable species in its natural habitat.


We currently do not offer tours to ride or bathe the elephants in Tangkerhan due to the decline in the sustainability of tourism there. However, if you wish to visit the village of Tangkerhan to enjoy the many other fantastic experiences there we are happy to arrange private transport and book your accommodation.