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There are an estimated 10,000 different plant species, almost 600 bird species, 200 mammal species and close to 100 species of amphibians and reptiles.


When you trek with SoCE, you are making a lasting contribution to the jungle surrounding Batu Katak, found on the edge of the Gunung Leuser National Park.


Gunung Leuser National Park covers 7,927 km2 in Northern Sumatra, Indonesia, straddling the border of North Sumatra and Aceh provinces. This biodiversity hotspot is home to a variety of species from Orangutans, Siamang Gibbons, White Handed Gibbons, a variety of snakes, including King Cobra and Python, beautiful butterflies and moths that are endemic to this jungle.

We offer a range of activities for you to get involved which will make your jungle stay memorable. We can also tailor your trek to your preferences to allow you to enjoy a mixture of activities. Our aim is to give you a life-changing experience that also provides a positive impact on the jungle, wildlife, and jungle communities around Batu Katak.


By taking part in SoCE treks you are actively contributing to the conservation of the natural, social, and economic environment of Batu Katak. When you book a trek with us, you will be directly supporting the on-going training of local guides as well as supporting community development and education for locals and tourists. We enable tourists to help rebuild the jungle with our team, and our program supports local people and tourists to gain a better understanding of the jungle and how to protect it.



Meet Ruddy

SoCE Director and Guide

Ruddy is a local registered guide from Batu Katak with 6 years of experience conducting guided tours in the deep jungle.

Over the past 3 years, he has been heavily involved in conservation activities including:

  • working with international conservation organizations

  • protecting the jungle in and around Batu Katak and

  • working with the local community on playground builds, compost builds, and signage


Ruddy’s conservation work has sparked his interest to provide tourists with a unique experience, to not only trek in the jungle and appreciate the flora and fauna of this magnificent place, but also to make a positive difference in the environment. From this enthusiasm, Seed of Change Expeditions was born.


Meet Pian

SoCE Guide

Pian is a local guide from Batu Katak and has been guiding for over 4 years. He has previously been involved in various conservation efforts within Batu Katak and the villages surrounding the Leuser Eco System.


Projects include: Reforestation, jungle patrol and community education.


Pian is excited to be a part of the SoCE team as he wants to participate in positive activities that will support the forest and the local community to thrive.


Meet Hendra

SoCE Guide  

Hendra is a local guide from Batu Katak and has been guiding and involved in conservation activities.

Over the past 3 years, Hendra has managed conservation projects and community education programmes in Batu Katak and surrounding villages.


Hendra has taken a lead role in jungle patrols with a focus on setting up camera traps and supporting activities with national park rangers.

Hendra is excited to be a part of SoCE so he can expand his knowledge of the the jungle and provide guests with a safe and wonderful experience.


Meet Darma
SoCE Guide

Darma has been guiding people through the Leuser Eco System for 6 years. He has also been involved in a variety of conservation work.


Darma loves to share his knowledge and skills with others and is a champion for the animals and the environment in and around Batu Katak.

SoCE Partners

SoCE is proud to have partners and support from local villages and organizations from around the world.

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