Between the two is what is known as no man’s land, a buffer zone. Caught inside are thousands of Rohingya refugees.
Armed Bangladesh border guards regularly patrol the strip, trying to stem the exodus of refugees.
Small children navigate through the murky brown water carrying heavy vessels of clean water. They are the only ones who are allowed to cross the boundary.
Hussein Ahmed is given permission to wade across the stream to speak to us.
He is a 39-year-old farmer. He looks 15-20 years older. Wiry framed and hollow-eyed. It is obvious that he has suffered greatly.
“I have been living in this camp for nine days. I have my family here,” he says, pointing to a small group huddled under a small tarpaulin sheet tied to four short poles.
“My village is about 30 miles over the border in Myanmar. It took us three days to walk here.
“We live on handouts. I know three families who have made it across from the camp to Bangladesh. But I haven’t taken the risk. I’m afraid we’ll get caught.”
Suddenly there’s a commotion, lots of shouting and people rushing around.
A platoon of Myanmar army soldiers have been sighted.
They are marching along the brow of the hill just behind a barbed wire fence. There are about 90 soldiers. All are heavily armed, carrying assault rifles and belt-fed machine guns. On their backs they carry large baskets.
The situation turns tense. The refugees stop whatever they are doing and watch the soldiers file past.
These could be the same soldiers who are raping, slaughtering and burning down Rohingya villages. They are just metres apart.
A Bangladesh border guard tells me Myanmar soldiers are laying landmines along the border. He points our team towards proof.
Near the crossing point where the creek is narrowest I find a man called Dil Muhammad.
He is a village elder and shows me an extremely distressing mobile video of a Rohingya woman.
She has had both her legs blown off from the knee down. She is then carefully wrapped in a sheet, picked up and carried by some men across the creek.
The video ends.
Dil Mohammed tells me the explosion happened a few days ago: “She was walking from her village towards the camp when she stepped on the mine.
“We brought here here and there were doctors from Medecins Sans Frontieres. They happened to be in the village.”
The team of medics were able to stop the potentially catastrophic blood loss and take the woman to hospital for lifesaving treatment.
She is not the only recent landmine victim.
A border guard shows me a photograph of a child on his phone. The boy is about 10 or 11 years old. He is lying on the floor. His left leg from just below the waist has been blown off. His right leg is badly injured, too.
Myanmar’s defacto leader, Aung San Suu Kyi, says the world has been duped by Rohingya propaganda.
But the pictures and videos we have seen are consistent with the injuries sustained from landmine explosions. The witness accounts also contradict her claim.
Myanmar stands accused of ethnic cleansing.
Driving the Rohingya from their burning homes and then preventing them from returning by laying landmines would be a deadly way of doing it.
© 2017, Vale of Glamorgan Broadcasting CIC T/A: Bro Radio & Sky News.