Three Days of Discovery in the Rainforest of Ulu Ai

Although we are fiercely independent travelers, there are times and opportunities that can be missed without an organized tour. And we really wanted to learn a bit more about the indigenous cultures of Borneo and get deeper into the jungle.

Cruising the Delok River about 5 miles from the Indonesian Border
It was about a 4 hour drive from Kuching to the Batang Ai Lake Boat Dock

Cheryl and I both have degrees in Anthropology (+my engineering and her creative writing) which fuels an endless desire to dissect and understand what we can about local cultures and customs in a rapidly changing world. So we picked the Batang Ai 3 Day Experience led by the award winning agency out of Kuching, Borneo Adventure. It was a great choice.

A chance for coffee and tea while our guide bought much of the supplies for our trip at the large Serian Daily Market

We awoke early on our departure day with a sense of excitement as we really didn’t know what to expect of this tour, and it required some thoughtful repacking, drybags, and consolidation of our gear, with the excess being left at our hotel in Kuching. It was also still the rainy season here, so rain was likely, and tons of rain a possibility. The drive was nicely broken up by a market stop and early lunches, but we were definitely ready to board the longboat for the nearly 2 hour trip to the community and lodge. Despite some steady rain as we drove, the boat trip was mostly dry.

Across the massive 24sq km Batang Ai Lake
After an hour crossing the Resevoir in some light rain we hit this massive log jam! It seemed impassible to us?!
The front boatman was impressively strong moving logs aside as the driver in the back worked magic with the outboard motor to get us through. This logjam is almost always here and a result of currents and erosion around the reservoir basin.
Arriving at Nanga Sumpa Lodge, which had recently been renovated and reopened.
Settling in on the great open veranda above the river, always ready with my binoculars.
The river was raging and mud colored the first day up but had magically cleared up and dropped enough to swim by the next morning.

The arms of the massive Batang Ai lake seemed to stretch forever and it was a dramatic shift in terrain and ambiance as we transitioned to the original Delok River. Although the lake/reservoir was pleasant and scenic in its own right, I couldn’t escape the artificial feel and haunting thoughts of the wild rivers that used to flow below. Thousands of Iban people were displaced by the construction of the dams and inundation of the valleys in the 1980s. On the upside, the reservoir provides a good amount of local clean hydropower. But it is what it is and we were here to support and get a glimpse of modern Iban life that still exists in the rivers above the lake. And it’s still a fascinating and unique community.

Life is only on the river here, our boatmen dropped a local downstream.
Our room was pleasant, airy and did cool down at night. There is electricity only from 6:30pm to about 10:30p to charge devices. Headlamps and charging blocks really help.
The “Ruai” or common area of the long house at Ulu Ai at a very quiet time. It was often full of families and kids socializing and playing games, and we later joined the kind chief and his wife for some rice wine and conversation.
Many handmade items are for sale outside each families personal space. We bought a few beautifully woven baskets and decorations. It’s appreciated but not required. The lodge and tours also provide many local jobs.
This bridge over the Sumpa confluence connected the lodge to the local community. This little guy wanted to come over and visit.
Nanga Sumpa Lodge.

The lodge is located at a small confluence, of the larger Delok, with a calm side creek, the Sumpa, which can be used to safely store longboats in time of high water or floods. All the remaining dozen or so longhouse communities in the remote Ulu Ai are located similarly. The lodge itself is rustic with three forest rooms with bathrooms, and a few more rooms sharing a bath. It was nice to be barefoot in the lodge for three days, and felt natural. Meals are simple but tasty communal affairs, although Cheryl and I had the lodge to ourselves the second night, after four young Germans had departed.

Many longboats are still paddled/pushed for local trips and fishing, but motors are key for longer trips, especially to the primary school and health clinic downstream.
Our first short trek introduced us to the long house community as well as the layout of the village above the river. Good birding too along the way despite a local teenager cranking some afternoon music -:).
Wooden long boats have flat bottoms to handle very shallow water sections on the river. It’s magical to cruise through the jungle.
This larger solar array had been installed just a few years ago for more constant electricity to the community. The pandemic accelerated the solar installation and arrival of satellite internet for remote learning for the kids.

After a nice trek around the community and then dinner, we headed back over to the bridge to the longhouse and meet the chief and his wife. This was a genuinely enjoyable experience and the chief was very down to earth and friendly, understanding a bit of English and facilitated by our guides native Iban and local dialect.

Our jungle trek was remarkably dry despite lots of rain the days prior. These forests are made to handle rain.
Paul, our fantastic guide for three days. His community relationships and understanding of the flora and fauna were impressive.
Each family has a local farming plot to grow rice and other crops, as the government and conservation efforts have mandated the transition from the traditional swidden (or slash and burn) agriculture to protect critical habitat.

We are very conscious of the voyeuristic aspects of this type of tourism, but felt Borneo Adventure’s unique and 35+ year relationship at Nanga Sumpa is positive and synergistic for all involved. It’s also very small scale. Their jungle tours are not for the faint of heart, but perfectly blend adventure with enough comfort for most travelers looking for a unique experience. So we didn’t take any photos of our interactions or the community as we walked around. Google the Nanga Sumpa longhouse if you want to see more photos to get an idea. And read this excellent article (thank you Gisela!) on the reconstruction of the long house after the 2014 fire: article here.

A farm shed in a jungle clearing
A Nanga Sumpa resident heading to her farm plot. Farming here is not easy.
Beautiful young bamboo shoots.
Rainforest fungi.
A bit of rubber is still extracted by the locals for use.
A local chief’s burial jar in the jungle with tributes of coins and cigarette butts. The grave is a way to protect and retain the land.

The second day began with a river crossing to trek for a few hours through the jungle and the hope to spot an Orangutan. There are over a thousand Orangutans in the Batang Ai National Park and adjacent preserves, but this buffer area of living Iban communities is outside the parks. However, a census/review done by WWF and other agencies in 2016 estimated about 250 Apes call this area home. This resulted in increased conservation efforts and even more desire to have the local communities coexist with this population. We were pleased to see some of our significant regular donations to WWF at work and having an impact on policy and life on the ground. It has seemed to push back the logging and palm plantation encroachment as well. At least for now.

And everything is flowing.
The waterfall swimming spot deep in the jungle was a place of exotic travel dreams.
Cheryl enjoying the cool waters.
The friendly boatmen double as talented jungle chefs and prepared a delicious local meal over a wood fire for us to enjoy.
Chicken, bamboo sticky rice and assorted veggies hit the spot with a giant kettle of tea.
I couldn’t believe we were here.
Cut plastic chairs serve double duty in the longboats and on the beach -:).
Heading back down the river: cool, full, and refreshed. Everything is on the river.

Many tourists want to see ancient cultures as they imagine them to be and seem to expect wildlife steaming out of the forest in all directions. Our brief experience brought to life the fact that life in the modern Borneo jungle is a delicate balance between preserving wild habitat, traditional cultures, and providing adequate economic and educational opportunities to thrive. It’s not an easy life. But the communal ways and semi-subsistence living was real, as were the dozen of kids joyously playing in their river paradise every afternoon (it was a school holiday week). But there is a constant mix between residents and the « outside world » After primary school, kids now go off to secondary school in cities and villages hours away (And board there). And others go off to work opportunities for years, some retuning later and some not.

A final search for Orangutans yielded some fresh nests, but alas, no viewings. We saw dozens of nests in our treks as Orangutans move constantly and build a new tree nest daily. An amazing adaptation that requires a lot of intact habitat.
Cooling off back at Nanga Sumpa.

If you want to have the opportunity to see more wildlife, including deeper into Orangutan habitat, Borneo Adventures offers 4 and 6 day trips. The four young Germans we met our first night had done the extended 4 day trip and did see an Orangutan and a Civet. Wildlife viewing is a crapshoot. But no worries, we did see Orangutans a few days later outside Kuching at the Semenggoh wildlife Reserve, a 1600 acre rainforest with about 28 orangutans. It was amazing to piece together the wild jungle experience with actual viewings.

Three of the four semi-wild orangutans we saw at the Semenggoh Wildlife Reserve. There is a small baby clinging to momma.
Posing next to Ritchie, the massive 145kg dominate male in the Semenggoh community.

Nanga Sumpa in 2024 was fascinating. But travel is a snapshot in time. It was undoubtably very different in 2014, before the old longhouse burned down and internet. And what about 2034? Will cell service reach here? Will the young come back and continue to support the community and longhouse way of life? Will wildlife be thriving or will there be more encroachment by logging companies?

Morning life on the River as two women head upstream.
Great memories (and great coffee and tea).

This was an amazing and memorable experience for us and we will cherish the glimpse we got into a completely foreign way of life. We only hope we left some positive vibrations in return. And although we didn’t see any orangutans in the wild, we saw lots of other unique flora and fauna, including some beautiful birds. And just knowing these amazing human-like cousins are still thriving in these jungles will bring a smile to my face for a long time to come.

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TravelRich

Embarking on the next phase of my life after working as a full-time Civil and Transportation Engineer in the San Francisco for 30 years. My wife and I will be following our shared passions for world travel, culture, and sustainable transport.

One thought on “Three Days of Discovery in the Rainforest of Ulu Ai”

  1. Great insight—thx for sharing:

    “life in the modern Borneo jungle is a delicate balance between preserving wild habitat, traditional cultures, and providing adequate economic and educational opportunities to thrive. It’s not an easy life. But the communal ways and semi-subsistence living was real, as were the dozen of kids joyously playing in their river paradise every afternoon (it was a school holiday week). But there is a constant mix between residents and the « outside world »“

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