Samar cavers confront fear and discover a hidden world in Langun-Gobingob Cave for IDCK 2026

What began as an adventure into one of the Philippines’ largest cave systems became a firsthand journey through fear, discovery and wildlife—and a reminder that Samar’s underground landscapes are worth exploring and protecting.

By Ricky Bautista

CALBIGA, Samar — For nearly an hour, a teacher at Samar National School Michael Salingsing sat patiently on a camp chair beside his tent near the mouth of Langun Cave, his Sony A7 IV camera pointed toward the dark opening.

He was waiting for the 5:00 p.m. bat exodus.

Then the first bats appeared.

Soon, the quiet of the late afternoon gave way to the sweeping movement of thousands of bats emerging from the cave and disappearing into the fading Samar sky.

Salingsing kept his camera trained on them.

For him, the wait was part of the experience.

“It’s a different experience,” Salingsing said between shots, while asking questions about caves and the creatures that inhabit them.

For YouTuber Genesis Fortaleza, a member of the Calbayog Mountaineering and Outdoor Group (CMOG), the experience began with a different challenge.

Fear.

He had been hesitant to enter Langun-Gobingob—not only because of its reputation as the largest known cave system in the Philippines, but also because of the dangers he imagined waiting in the darkness.

He decided to go in anyway.

Fortaleza brought sets of lightings and a 360-degree camera, recording the cave’s formations and the bats circling near the campsite.

In a social media post after the activity, he described how he had initially overthought the possible dangers of entering the cave. But he eventually realized that unless he confronted his fear, he would never know what beauty was hidden below the surface.

The journey was far from easy.

He described slippery and sharp rocks, steep sections and difficult footing. But the presence of his companions and the guidance of the Speleo Samar PH team made the journey more manageable.

Once inside, the fear gradually gave way to fascination.

Fortaleza described the cave as another dimension—a quiet world of extraordinary beauty that is not easily seen by everyone.

“Minsan, kailangan mo talagang tumawid sa sarili mong dilim para lang makita ang totoong liwanag,” he wrote. (Sometimes, you have to cross your own darkness to see the true light.)

For Jennifer Pallones, the darkness was also something to overcome.

An adventurer but first-time caver, Pallones admitted beforehand that she was afraid to enter the cave.

It took a friend who had joined the activity to persuade her to try.

She eventually went in.

After completing the experience, Pallones said she now felt ready to join another cave activity, having overcome her fear of enclosed or confined spaces.

For Hope Doblon, a Catbalogan City government employee, the defining challenge came during a steep vertical descent.

“It was tough, but I’m glad I’ve survived it,” Doblon said.

The challenge was particularly significant because of his fear of heights.

“This is surely an addition to my caving experience, especially since I have a fear of heights,” he said.

Different people entered the cave with different fears and expectations. They came out with different stories to tell.

But all of them encountered a side of Samar that exists largely beyond ordinary view.

A cave big enough to change perspective

Langun-Gobingob in Brgy. Panayuran in Samar’s Calbiga town is not an ordinary cave.

The cave system is recognized as the largest known cave system in the Philippines, with an explored area reported at about 2,968 hectares and 12 immense chambers extending across roughly seven kilometers.

For people entering it for the first time, however, statistics quickly become secondary.

Inside, the numbers become walls.

They become towering formations disappearing into darkness, enormous chambers swallowing the beam of a headlamp and passages that make the outside world feel impossibly far away.

Participants Aura Anne Rose Tan, Rhea Libungan, Joel Lauron, Albert Dagal and Jedee Magoncia, along with the other members of the group, experienced that underground landscape firsthand.

They descended steep sections, negotiated slippery rocks, walked through knee-deep mud and guano and stood before towering formations that have developed over extraordinarily long periods.

“Grabe, hindi kami na-orient beforehand na may ganito pala,” participants joked as they confronted the steep wall descent.

The humor eased some of the tension, but the physical challenge was real.

Caving is not simply walking into a hole in the ground.

It requires preparation, knowledge of the environment, appropriate equipment, teamwork and respect for the limitations of both the people and the cave.

The activity was facilitated by Speleo Samar Philippines Inc. (SSPi), with members of the group Liezl Bautista, Jeric Mabangue, and Lisa Marlie Dacuro and local cave guides assisting the participants throughout the experience.

The organizers also introduced participants to cave management and responsible caving, including the importance of minimizing disturbance to cave formations and wildlife.

The weekend combined the physical challenge of caving with an introduction to the environmental responsibilities that come with exploring underground spaces.

The appeal of caving is obvious. The responsibility that comes with it is less visible.

Then came the bats

At around 5 p.m. on Saturday, September 12, the participants’ attention shifted toward the cave entrance.

Something was happening overhead. Bats began emerging from the darkness.

Then more followed.

And more.

The evening bat exodus became one of the weekend’s most memorable moments, drawing cameras and phones toward the sky.

Salingsing and others had been waiting for nearly an hour for precisely this scene.

Their patience paid off.

But the spectacle was more than a dramatic wildlife encounter.

Bat emergence is part of the animals’ daily transition from their daytime roosts to their nighttime activities. The timing and pattern of emergence can be influenced by environmental conditions, including light, and the behavior is important to understanding how cave-dwelling bats interact with their surroundings.

For the visitors at Langun-Gobingob, however, the science began with something much simpler.

The cave was alive.

The bats were not merely part of the scenery. They were using the cave as a roost and the surrounding landscape as part of the habitat they depend on.

The sight offered an important perspective for visitors discovering caves as tourism and adventure destinations.

What looks like a spectacular show to people standing outside may be an essential part of the daily life of the animals living inside.

More than bats in the darkness

The bats were not the only reminder of the life hidden inside Langun-Gobingob.

Deep inside the cave, Speleo Samar Philippines, Inc. also photographed a pale freshwater crab that maybe adapted to life underground. Samar is known to harbor cave-dwelling freshwater crabs of the genus Sundathelphusa, some of which show adaptations associated with subterranean environment, including reduced eyes, lighter pigmentation and elongated legs.

The cave is also known for the blind cave goby, Caecogobius cryptophthalmus, a species first documented during the 1987 Samar speleological expedition.

Such creatures offer a glimpse into an ecosystem that exists largely beyond human sight — and a reminder that every deeper exploration can reveal more of what remains to be understood and protected beneath Samar’s limestone.

That is where cave tourism becomes more complicated—and more meaningful.

From fear to fascination

Pallones’ experience illustrated another side of caving that photographs of spectacular formations rarely capture.

For some people, the first journey underground is also a journey against their own fears.

The darkness can be intimidating. The narrow spaces can be uncomfortable.

The unfamiliar sounds can make every movement feel magnified.

But with proper preparation, guidance and a responsible group, the experience can turn fear into curiosity.

And curiosity can become appreciation. Fortaleza’s experience followed much the same path.

He entered wondering what dangers might be waiting for him. He came out talking about the beauty he had found.

His 360-degree footage captured parts of the cave that ordinary cameras cannot easily convey, while his reflection after the activity revealed something that cannot be captured by any camera at all: the personal experience of confronting fear.

That is one of the less visible dimensions of adventure tourism.

The destination may be the cave. But the journey is also personal.

The challenge of going vertical

The participants were also given a taste of the technical side of caving through a rope-assisted descent of a steep vertical section.

“Grabe, hindi kami na-orient beforehand na may ganito pala,” participants joked while trying to negotiate the descent.

For some, it was physically demanding. For others, it was a test of nerve.

Doblon’s fear of heights made the descent particularly challenging.

“It was botake (short for bonggang atake) and tough, but I’m glad I’ve survived it,” he said.

The experience left participants with a deeper appreciation of the skills and discipline involved in moving through underground environments.

Caving requires more than physical strength. It demands judgment.

A misplaced step can have consequences. A careless movement can damage a fragile formation. An inexperienced visitor can put both himself and his companions at risk.

That is why responsible caving places equal importance on safety and conservation.

Why caves deserve their own day

The timing of the activity wasn’t coincidence. The Speleo Samar PH Inc, joined, on September 13, 2026, countries around the world marked the first International Day of Caves and Karst, an annual observance proclaimed by UNESCO in 2025.

The new observance is intended to raise global awareness of caves and karst landscapes and their importance to biodiversity, water resources, geological records, cultural heritage and sustainable development. UNESCO and the International Union of Speleology have emphasized that these underground environments remain among the world’s least understood and most vulnerable natural systems.

The International Union of Speleology encouraged caving groups, schools, communities, protected areas, universities and other organizations to mark the occasion through activities such as cave tours, lectures, exhibitions, cleanups and educational programs.

Caves and karst are not simply destinations for adventure.

They can contain underground water systems, specialized wildlife, geological records and evidence of human history. Their value often extends far beyond what visitors can see during a single trip.

That makes Samar a fitting place to begin a wider conversation about responsible cave tourism.

The province’s karst landscapes offer enormous potential for outdoor recreation, education and scientific exploration.

But the same qualities that make them attractive also make them vulnerable.

But tourism also brings pressure.

More visitors mean more footsteps, more light, more waste and greater potential disturbance to wildlife and fragile formations.

A cave formation that took thousands of years to develop can be damaged in seconds.

Repeated disturbance can affect bats and other cave-dependent species.

Waste left underground can persist long after visitors have gone.

And because karst landscapes can contain interconnected underground drainage systems, disturbances on the surface can affect places below ground that visitors may never see.

That is why responsible cave tourism requires more than opening a cave to visitors.

It requires trained guides, proper equipment, visitor orientation, safety protocols and clear conservation rules.

It also requires visitors to understand that they are entering an ecosystem, not merely an attraction.

The challenge is not to keep people away.

It is to teach people how to enter without damaging what they came to see.

The making of a caver

For Michael, it was a camera and a set of camping gears.

For Genesis, it was a 360-degree camera, a set of lightings and a fear he decided to confront.

For Jennifer, it was overcoming her fear of confined spaces.

For Hope, it was facing a steep descent despite his fear of heights.

For the other participants, it was the simple but extraordinary experience of standing infront of a towering stalagmites and flowstones whose scale is difficult to understand until one is physically there.

Their reasons for joining were different. So were their experiences.

But the cave gave each of them something that photographs alone cannot provide.

Perspective.

They saw the mud and guano. They felt the steep descent.

They saw formations disappearing into darkness. They watched thousands of bats emerge at dusk.

And, perhaps most importantly, they experienced firsthand the fragility of a place that can easily be treated as an adventure playground if its ecological value is overlooked.

That is where the futre of cave tourism will be decided.

Not simply by how many people can be brought underground, but by how many can be taught to explore responsibly.

Samar has the landscapes to attract adventurers.

It also has the opportunity to turn those visitors into better-informed stewards of the environment.

The first International Day of Caves and Karst provided a timely reminder of that connection.

Adventure brings people to the cave.

Science helps them understand it. And conservation gives them a reason to protect it.

As dusk settled over Panayuran, the last bats disappeared into the Samar sky.

The visitors packed their cameras, ropes and equipment.

The cave entrance grew quiet. But the experience stayed with them.

For some, it was the thrill of adventure. For others, it was the satisfaction of overcoming fear.

For others still, it was the realization that beneath Samar’s forests lies a world of extraordinary scale, life and fragility.

Fortaleza’s words perhaps captured that journey best:

“Minsan, kailangan mo talagang tumawid sa sarili mong dilim para lang makita ang totoong liwanag.”

Sometimes, you have to cross your own darkness to see the true light.

For the visitors of Langun-Gobingob, the darkness revealed a world they had never known firsthand.

It was not empty.

It was alive.

And now that more people are finding their way into it, the responsibility is to make sure it stays that way.

Editor’s Note: The author, a seasoned caver Ricky Bautista, is the president of the Speleo Samar Philippines Incorporated and City Tourism, Culture, Arts and Information Office employee in Catbalogan City.)