This project offers you the chance to work on enrichment with captive orangutans and sun bears at the world-renowned Samboja Lestari Rescue Centre.
Your main activities whilst volunteering with orangutans at Samboja Lestari include husbandry, enrichment, reforestation, maintenance and construction work for both the orangutans and the sun bears resident here. You will be treated as pseudo-staff whilst on the project, meaning full participation in all of the centre's work.
Below is an example of a typical two-week itinerary. Please note, however, some activities may be subject to change during the time of your stay as they are dependent on weather conditions and the requirements of the project at the time.
You will be accommodated at the stunning Samboja Ecolodge during your time on the project, all built with recycled materials! Each room comes equipped with air conditioning, mosquito nets, an en-suite bathroom with hot water, and a Western-style toilet. Rooms are allocated on a twin-share, same-sex basis (unless travelling as a couple, in which case you will be accommodated together), and there is the option to pay a single supplement ($540 for a 12-night stay or $1,148 for a 26-night stay) to have a private room.
Within the lodge, there’s a relaxed social area where you and your team can switch off after a busy day. With a pool table and an on-site bar, it’s an easy place to unwind and spend time together.
You’ll be fuelled with three hearty meals a day while on the project, all served buffet-style in the lodge dining area. Breakfast includes a varied spread of cereals, eggs, rice or noodle dishes, fresh fruit, and fruit juice. Lunches and dinners typically feature rice with chicken, seafood, mutton or beef, alongside vegetables, with noodles often on the menu. Vegetarian options include tofu and soybean dishes, ensuring everyone is well catered for. (Please contact us before booking if you have a severe nut allergy.)
This project is based at a rehabilitation sanctuary, and there are orangutans and sun bears here year-round, meaning there is no real preferred time to volunteer regarding the animals.
The weather is also quite constant throughout, and whilst it can rain at any time of the year due to the rainforest climate, you can expect mostly dry weather with temperatures averaging 29-31°C (84-88°F) in the daytime and 24°C (75°F) at night.

You will need to fly into Balikpapan Airport on your project start date, arriving between 7am-6:15pm, with most international flight routes going via Jakarta International Airport (Soekarno-Hatta International Airport) or Singapore. Upon arrival at Balikpapan Airport, you will be met by a project representative in the arrivals hall who will then transfer you to Samboja Lodge. This transfer takes approximately one hour.
If you arrive a day early and stay in a hotel close to Balikpapan Airport, we can arrange your transfer to Samboja Lodge from there.
To join this project, you will need a tourist visa which you can get on arrival in Indonesia. The cost of this visa is approximately US$35.
If you plan to stay in Indonesia for longer than 30 days, you can get a 30-day tourist visa on arrival and then extend this visa for a further 30 days by going to the immigration office in Balikpapan (which we can arrange for you).
We advise that you speak to the embassy in your country to see if there are any requirements for travel. Please note that your passport must be valid for a minimum of six months from your date of entry into Indonesia.
The work undertaken on this project can be quite physical, often in humid conditions, so a moderate level of fitness is required. No skills or experience are required; all that we ask is that you arrive with a commitment to the project and its aims, a passion for wildlife conservation, and the willingness to work alongside your team!
To volunteer on this project, you must provide negative test results to show you do not have HIV or Hepatitis B or C prior to arrival. A chest x-ray or QuantiFERON blood test to show you do not have Tuberculosis is also required. These are ESSENTIAL, as without them, you will be unable to join the project.
Due to the Covid-19 pandemic, additional safety measures have also been introduced to ensure the safety of all volunteers, staff members and the orangutans. These can be viewed by clicking here and may change at any time.
We are often asked whether or not volunteers will have the chance to touch or play with the orangutans whilst on this project. Our answer to this question is, and always will be no, and this is for good reason.
Orangutans are highly susceptible to human diseases, many of which are far more dangerous to an orangutan than they are to us. Also, an environment of constant change, with new volunteers going to the project every two or four weeks and being in contact with the orangutans would be very detrimental to the orangutans' well-being. With no consistency in their lives, behavioural problems arise. They also have a tendency to begin to trust humans which is damaging should they be released back into the wild, as they will become easy targets for poachers. Finally, an orangutan is around 7 times stronger than an adult male human so a no-contact policy is just as crucial for your safety as theirs.
That is not to say that you will have no interaction with the orangutans, it simply means that you will have no direct contact with them. You will still observe them on a daily basis and see how your contribution to their husbandry and enrichment makes a real difference to the lives of these apes. For more information, please view our article on hands-on contact with orangutans.
Join us in Borneo for an unforgettable adventure with orangutans and sun bears! From creating enrichment and assisting with construction projects, to visiting a local night market and trekking through one of the world's oldest primary rainforests, this project has it all!
Hear from volunteers Alex, Kye, Carrie, and Rita as they share their experiences, favourite moments and what you can expect from volunteering with orangutans at Samboja Lestari.
Join Kate, The Great Projects' Volunteer Coordinator at Samboja Lestari, as she explains how joining this project leaves a lasting impact on the resident wildlife and what you can expect from participating as a volunteer.
Take a look at wildlife adventurer Catherine Capon's trip to Samboja Lestari and discover what volunteering with orangutans is really like!
NEWS | Jul 2026
Wondering if a few weeks can make a difference? Discover how conservation volunteering supports lasting wildlife conservation!
UPDATE | Jul 2026
June volunteers have been busy building platforms for both orangutans and sun bears, creating enrichment, and improving pathways to the adult enclosures. One highlight was completing a new feeding platform on Orangutan Island 5, ready for its newest residents, while another team restored a well-used sun bear platform that's already proving popular.
UPDATE | May 2026
Samboja was full of activity this May, with volunteers helping with enrichment, building new sun bear resting platforms, and a brand-new pathway around the orangutan socialisation cages, giving the technicians better access to deliver food and leaves! Volunteers also saw some orangutan island moves, with Jujun and Androw settling into island 6.
We had a fantastic experience, Kate was our project coordinator and her and her team were so well organised. Every evening she would run through the itinerary for the following day, including how the group were to be split up for different tasks etc. During the 12 nights we had really varied activities, from collecting leaves for enrichment, preparing different enrichments, building a feeding platform, helping to lay a concrete path to removing silt from the river bed to increase the depth of the water. We initially worked with the sun bears until our second covid tests proved negative whereby we were able then to work with the adult orangutans living in the sanctuary. Kate and her team were really supportive, given guidance and had lots of knowledge about the sun bears and the orangutans. The group we were with, were really great, everyone worked well together and we had lots of fun whilst feeling really thankful for being able to give some care to the sun bears and orangutans to help make their lives better. The lodge was very comfortable and we had superb food, best food we have had on any of the other volunteers experiences we have... We had a fantastic experience, Kate was our project coordinator and her and her team were so well organised. Every evening she would run through the itinerary for the following day, including how the group were to be split up for different tasks etc. During the 12 nights we had really varied activities, from collecting leaves for enrichment, preparing different enrichments, building a feeding platform, helping to lay a concrete path to removing silt from the river bed to increase the depth of the water. We initially worked with the sun bears until our second covid tests proved negative whereby we were able then to work with the adult orangutans living in the sanctuary. Kate and her team were really supportive, given guidance and had lots of knowledge about the sun bears and the orangutans. The group we were with, were really great, everyone worked well together and we had lots of fun whilst feeling really thankful for being able to give some care to the sun bears and orangutans to help make their lives better. The lodge was very comfortable and we had superb food, best food we have had on any of the other volunteers experiences we have undertaken. Kate also organised some super trips in our downtime. We did feel part of a large family of like minded people. One of the best volunteer projects we have been on. Highly recommend this - Kate is definitely the best project coordinator we have had. (Show More)
My 4 week volunteering project began after a 3 day journey to get there. Not knowing what to expect i was met by Kate. An amazing caring lady who sometimes doesn't appreciate her own depth and knowledge. She quickly put me at ease, showed me to my room and let me get settled in. I went down for lunch, the food never let us down, always fresh always good options, always tasty and if we wanted something all we had to do was ask and it was usually granted within reason. I was the only volunteer there for most of the day so had my first glimpse of Rambo who stole my heart from the start. All of the people involved in the TGP are clearly caring lovely people who treat everyone with kindness and respect including the animals. It was a pleasure to work hard for the cause and i did not regret one single decision i made to embark on such a worthwhile cause. The Orangutans share 97% of our DNA so hopefully they get out of it what we get out of it. it was sheer pleasure every time we interacted with them. The sun bears are... My 4 week volunteering project began after a 3 day journey to get there. Not knowing what to expect i was met by Kate. An amazing caring lady who sometimes doesn't appreciate her own depth and knowledge. She quickly put me at ease, showed me to my room and let me get settled in. I went down for lunch, the food never let us down, always fresh always good options, always tasty and if we wanted something all we had to do was ask and it was usually granted within reason. I was the only volunteer there for most of the day so had my first glimpse of Rambo who stole my heart from the start. All of the people involved in the TGP are clearly caring lovely people who treat everyone with kindness and respect including the animals. It was a pleasure to work hard for the cause and i did not regret one single decision i made to embark on such a worthwhile cause. The Orangutans share 97% of our DNA so hopefully they get out of it what we get out of it. it was sheer pleasure every time we interacted with them. The sun bears are just as pleasurable to watch, make enrichments for and feed. The last day we went for one last visit to see Papa and Kikan who had been released back onto their island (entertainment providers). Then we went to see all of the others on the islands. We got a really nice unexpected surprise and a lovely photo with Dr Willie Smits (founder of the BOS foundation). We had a chat with him about threat of El Nino and how the land we were stood on was barren land some 30 odd years previous. I will never forget the memories i made with people and animals in the rainforest of Borneo, thank you TGP and all involved. (Show More)
Working with BOS was an enlightening experience over the last two weeks. Our coordinator Kate had been with BOS for over ten years. I personally found Kate a very experienced and personable. Throughout my time I had been shown how to enhance enrichments for the Orangutans and Sun Bears. As an energetic over seventy years young woman with limitation of my upper strength, I was able to feel involved and part of the team. I had so much pleasure assisting with building the Sun Bears platform, digging holes ready for the insertion of beams, which were cut to length, securing with washers and bolts. Then placing a roof on top with the help of my fellow crew. After this adventure our team prepared concrete ready to make a path for access for future team members and technicians , we were able to leave our mark in the wet concrete. Another experience was removing wet soil from the river so Orangutans couldn’t cross over to another island and hurt each other in the jungle. This was hard labour intensive although so satisfying. I will always have such loving and fond memories. I came away filled with happiness and joy seeing orangutans... Working with BOS was an enlightening experience over the last two weeks. Our coordinator Kate had been with BOS for over ten years. I personally found Kate a very experienced and personable. Throughout my time I had been shown how to enhance enrichments for the Orangutans and Sun Bears. As an energetic over seventy years young woman with limitation of my upper strength, I was able to feel involved and part of the team. I had so much pleasure assisting with building the Sun Bears platform, digging holes ready for the insertion of beams, which were cut to length, securing with washers and bolts. Then placing a roof on top with the help of my fellow crew. After this adventure our team prepared concrete ready to make a path for access for future team members and technicians , we were able to leave our mark in the wet concrete. Another experience was removing wet soil from the river so Orangutans couldn’t cross over to another island and hurt each other in the jungle. This was hard labour intensive although so satisfying. I will always have such loving and fond memories. I came away filled with happiness and joy seeing orangutans in their true environment, where baby orangutans are educated by loving carers in baby school. They are shown how to survive in the wild, learning to climb and swing from tree to tree. Also what foods to search to obtain ample food source. With the help of fellow team members and technicians we were shown how to collect branches, ferns and leaves for the orangutans make their beds each night. The technicians & Kate showed how to use a machete for cutting food sources for the orangutans & Sun bears. Accommodation was outstanding and the lodge provided outstanding meals catered for all tastes. My fondness memories will be knowing the orangutans and sun bears are in a safe and caring environment and being a part of this incredible experience, in particular listening to the sound of the jungle & night calls of the animals in the early morning hours. From the bottom of my heart I truly BOS for such a remarkable exposure to life in the jungle. Thank you so much for the best time of my life. Regards Christine Sharkey June 13-28 th 2026. (Show More)