On July 24, 2010, a group of hikers entered the Okuchichibu Mountains in Japan for what was supposed to be a guided climbing trip. They had no idea that their journey would turn into one of the area’s most disturbing mountain tragedies.
A woman fell to her death while climbing a waterfall. A rescue helicopter sent to help the stranded group crashed, killing everyone on board. Then, two journalists investigating the disaster also lost their lives.
By the time the incidents were over, nine people had died.
But what made the tragedy even more disturbing was how every death seemed to connect to the first accident. What began as a routine climbing trip turned into a chain of events that left people questioning whether it was simply a series of terrible coincidences.
The Waterfall Climbing Accident on July 24, 2010
A guided climb in the Okuchichibu Mountains
At around 4:00 p.m. on July 24, 2010, a mountaineering guide named Hiroshi Tanaka stood at the top of a waterfall in Japan’s Okuchichibu Mountains.
He was leading a group of eight people who had come to climb with him. Hiroshi was an experienced mountaineer and had already climbed the waterfall himself.
His plan was to help the others reach the top safely.
He attached a long rope to a tree upstream from the waterfall. He then brought the rope toward the edge, away from the falling water, and dropped the other end down to the hikers.
After securing himself to the rope, he climbed back down to the group and explained how they would make the ascent.
The guide checked everyone’s safety equipment
The climb was not suitable for complete beginners. Although the hikers had some climbing experience and were physically fit, they were still amateurs.
Hiroshi warned them that the rocks could be slippery because of the water spray. He explained that everyone needed to hold on carefully and take their time.
All eight hikers clipped themselves to the safety rope.
Before starting, Hiroshi checked each person’s connection. He even tested their attachments to make sure everyone was properly secured.
The rope was supposed to catch anyone who lost their footing.
Once he was satisfied that everyone was connected, he gave the group permission to begin climbing.
Chieko Ono Falls From the Waterfall
The lead climber loses her footing
The first person to start climbing was a woman named Chieko Ono.
She was relatively experienced compared with the other hikers. Hiroshi instructed her to set a comfortable pace because everyone else would follow behind her.
Chieko began moving up the wet rocks. Although she was not directly underneath the falling water, the spray had made the surface slippery.
She struggled to find good handholds but eventually managed to continue.
One by one, the other hikers followed her up the waterfall. Hiroshi stayed at the bottom, checking on the group and asking whether anyone was having difficulties.
For a while, everything seemed to be going well.
Then, when the group was more than three-quarters of the way to the top, something went terribly wrong.
Chieko suddenly lost her footing.
The safety rope fails to catch her
Hiroshi looked up and saw Chieko falling.
He immediately braced himself against the rock face. He expected the rope to tighten and absorb the force of her fall.
If she was properly attached, the rope should have stopped her from falling all the way down.
But nothing happened.
Instead, Chieko came falling past him and crashed into the water below.
Somehow, she had become disconnected from the safety rope.
Hiroshi could not understand how this had happened. He had personally checked everyone’s connections before the climb.
He believed the rope should have prevented exactly this kind of accident.
But there was no time to investigate.
The remaining hikers were terrified. Some were crying and screaming while they remained stuck on the slippery rock face.
Hiroshi shouted for everyone to climb back down.
He then disconnected himself, rushed to the bottom and jumped into the water.
He found Chieko floating face down and unconscious.
Hiroshi Attempts to Save Chieko
Emergency CPR at the bottom of the waterfall
Hiroshi pulled Chieko out of the water and immediately began performing CPR.
The other hikers slowly made their way down the rope.
When they reached the bottom, Hiroshi asked whether anyone knew CPR. One person said they could help.
Hiroshi instructed that person to continue performing CPR while he went to find emergency assistance.
He carried a satellite phone, which he hoped would allow him to contact rescuers.
However, there was a problem.
The satellite phone has no signal
The mountains blocked the satellite phone’s reception. Hiroshi knew that he might need to climb higher to find a usable signal.
He told the other hikers to stay with Chieko and continue CPR.
Then he started climbing back up the mountain.
He passed the waterfall and continued toward higher ground, repeatedly checking his phone.
But no matter how far he climbed, he could not get a signal.
As darkness approached, the situation became increasingly dangerous.
The summit was still far away, and continuing upward in the dark could put Hiroshi’s own life at risk.
He also had to consider the eight other people waiting below.
If he fell or became injured, they would have nobody to guide them out.
Eventually, he made a difficult decision.
He stopped climbing and carefully returned to the group.
Chieko does not survive
Hiroshi hoped that Chieko might regain consciousness before he returned.
But when he reached the bottom of the waterfall, he found that CPR was still being performed.
Several hours had passed.
He checked Chieko himself using his medical training and confirmed that she was dead.
There was nothing more the group could do for her.
Hiroshi explained that he had been unable to get a phone signal. They would have to remain on the mountain overnight.
He promised to climb higher the following morning and contact the authorities.
The group had not planned to spend the night outdoors. Now they were forced to stay in the cold, with Chieko’s body nearby and no immediate way to leave.
The Rescue Helicopter Crashes
Help finally arrives
When morning came, Hiroshi prepared to climb again.
This time, he intended to reach the summit if necessary.
He left the other hikers near Chieko’s body and continued upward.
After climbing for some time, he finally reached an open clearing where his satellite phone received a signal.
He immediately contacted the mountain police and explained what had happened.
The authorities asked him to provide the group’s coordinates and told him that a rescue helicopter would be sent.
Hiroshi was relieved.
He returned to the group, and everyone waited for the rescue team.
Five people die in the helicopter crash
After some time, the hikers heard a helicopter approaching.
They watched as it flew over the mountain and circled the area, apparently searching for a suitable landing location.
But suddenly, something went wrong.
The helicopter dipped violently and began spiraling out of control.
The group watched helplessly as it crashed into the mountain and exploded.
All five people aboard the helicopter died.
The rescue mission had become another disaster.
The stranded hikers had already lost Chieko. Now the helicopter crew sent to rescue them was also dead.
A Sixth Victim Dies While Trying to Help
The helicopter crash was reported at a television news station in Tokyo.
A reporter named Yuji Kita was assigned to investigate the incident.
At first, the known details were limited. A helicopter sent to rescue stranded hikers had crashed in the Okuchichibu Mountains, killing all five people on board.
But another report soon reached the newsroom.
A completely unrelated hiker had also died.
A hiker approaches the crash site
The man had been hiking in the surrounding mountains when he noticed smoke coming from the helicopter crash.
He decided to investigate and see whether he could help.
While making his way toward the crash site, he slipped and fell down the mountain.
His body was later discovered about 100 yards from the crash site.
This brought the death toll associated with the original waterfall accident to seven.
Seven people had now died in less than 24 hours.
And the chain of events was not over.
Journalists Return to Investigate the Mountain Tragedy
Yuji Kita and cameraman Jun Kawakami visit the mountains
Six days after the original accident, reporter Yuji Kita traveled to the Okuchichibu Mountains with a cameraman named Jun Kawakami.
They wanted to document the area and better understand what had happened.
By this time, Hiroshi and the surviving hikers had been rescued and returned home.
However, the story remained a major topic in Japan because of the unusual number of deaths connected to one accident.
Yuji and Jun hoped to provide viewers with a better understanding of the dangerous terrain.
A local trail guide accompanied them.
The guide warns them about the freezing water
During their investigation, the journalists descended a steep gorge using a rope.
At the bottom, they found a shallow stream that they would need to cross to reach the helicopter crash site.
The guide warned them against crossing it.
Although the water was shallow, it was extremely cold. He believed crossing it would be too dangerous.
Yuji was initially determined to reach the other side.
But when he stepped into the water, he immediately understood the guide’s warning.
His feet began going numb within seconds.
After discussing the situation, Yuji and Jun agreed that crossing was too risky.
They decided to film the stream and conduct a short interview with the guide instead.
Once they had finished recording, they packed their equipment and climbed back up the rope.
They had decided not to take unnecessary risks.
The Decision That Led to Two More Deaths
A better camera angle seems possible
After reaching the top of the gorge, Yuji and Jun prepared to leave.
But then Jun noticed a nearby ridge.
He believed it might offer a much better view of the helicopter crash site.
Although they could not reach the crash site directly because of the freezing stream, they might be able to photograph it from above.
Yuji asked their guide whether the ridge was accessible.
The guide explained that a trail led directly toward it. He considered the route routine and offered to take them there.
But the journalists declined his offer.
They believed they could find the trail themselves because it was broad daylight and the route appeared straightforward.
They thanked the guide and told him he could leave.
The guide watched as the two journalists headed toward the ridge.
He then departed.
The journalists never return
Yuji and Jun did not return that evening.
When their colleagues and family members realized they were missing, they went to the mountain parking area.
Their news van was still there, but the journalists were nowhere to be found.
They were reported missing, and a rescue operation began around dawn the following morning.
The rescuers initially searched the area where the guide had last seen them.
They followed the same trail toward the ridge but found no sign of the missing men.
Then they noticed something unusual from their position above the stream.
Two objects were floating in the water below.
The Final Two Victims Are Found
The rescue team went down to investigate.
The two objects were Yuji Kita and Jun Kawakami.
Both journalists had died.
The apparent explanation was that they had slipped while exploring the ridge, fallen down the mountain and ended up in the freezing stream.
Their deaths brought the total number of people who had died in the chain of events to nine.
The original waterfall accident had now been connected to eight additional deaths.
How One Accident Led to Nine Deaths
The events in the Okuchichibu Mountains unfolded over several days.
Here is how the death toll developed:
| Incident | Deaths |
|---|---|
| Chieko Ono’s waterfall fall | 1 |
| Rescue helicopter crash | 5 |
| Hiker who approached the crash site | 1 |
| Two journalists who later disappeared | 2 |
| Total | 9 |
Each incident was connected to the original accident.
Chieko’s fall led to an attempted rescue. The rescue helicopter crashed, and another hiker died while trying to investigate the crash.
Six days later, two journalists investigating the tragedy also died in the same mountain range.
What started as a climbing accident had turned into a chain of nine deaths.
Was the Okuchichibu Mountain Tragedy Just a Coincidence?
The sequence of events left many people struggling to understand how so many unrelated accidents could happen in such a short period.
One explanation is that the deaths were simply a series of terrible coincidences.
A slippery waterfall caused a fatal fall. The rescue helicopter suffered an accident. A hiker fell while approaching the crash site. And two journalists later died while exploring the surrounding terrain.
Each event had its own circumstances.
But another interpretation emerged from the strange connection between the deaths.
The Final Destination theory
Some people pointed to the original group of nine people: Hiroshi and the eight hikers he was guiding.
They had all been connected to the same safety rope during the waterfall climb.
Hiroshi had checked their connections, yet Chieko somehow became disconnected and fell to her death.
The remaining eight people survived because Hiroshi immediately ordered them to climb back down.
This led to a darker theory.
What if all nine people in the original group were supposed to die that day?
According to this interpretation, Chieko was the first victim, but the other eight hikers escaped their fate because Hiroshi acted quickly.
The eight additional deaths that followed could then be viewed as replacements for those who survived.
It is an unsettling idea that resembles the plot of Final Destination.
Of course, there is no evidence that anything supernatural happened in the mountains. The theory is speculation, not an established explanation.
Still, the unusual chain of events explains why people continued discussing the tragedy.
Conclusion: A Tragic Chain of Unpredictable Events
The July 2010 Okuchichibu mountain tragedy began with a single climbing accident.
Hiroshi Tanaka had guided hikers through the mountains before. He checked their safety equipment and tried to protect them when Chieko Ono fell.
He then spent hours trying to save her and find help for the stranded group.
But the rescue attempt ended in another disaster, followed by more deaths in the same mountain range.
Nine people ultimately lost their lives through a series of connected events.
Whether these deaths were simply terrible coincidences or something people will continue to interpret differently, the tragedy offers a sobering reminder of how quickly situations can change in the mountains.
A familiar trail can become dangerous. A routine decision can have unexpected consequences. And even when people are trying to help, the risks can sometimes become greater than they realize.