Amazon River

The Amazon River, situated in South America, is also connected to the Atlantic Ocean and is considered the longest river in the world by certain authors. It spans a length of 6,992 km, making it impassable, much like its counterpart, the Congo River.

This river is home to a wide variety of aquatic species, and due to its undisturbed food chain, the fish found here can grow to unusually large sizes. However, it is not the fish that should cause concern. The Amazon River is also inhabited by some of the largest Anaconda snakes ever witnessed.

Yellow River

The Huang He, also known as the Yellow River in China, is a visually striking river that should be avoided. It is the third longest river in Asia and the sixth longest river system globally. Its water originates from the Bayan Har Mountains. The river has gained a notorious reputation as the most dangerous and destructive river in the world, earning the nickname "River of Sorrow". If someone were to fall into it, it would be extremely difficult to recover their body. The river has shamelessly changed its course 26 times, causing over 1500 floods and claiming the lives of millions of people in its path. It is ironic that the color yellow, often associated with happiness, is linked to such devastation.

Kern River 

Bodies being discovered or going missing around the Kern River in California has become a common occurrence. The popular river in the Sierra Nevada mountains attracts rock climbers and adventurers, but it has also tragically claimed many innocent lives. Since 1968, the death toll has reached 271. In 2014, two boys drowned while swimming in the 264-kilometer-long river. The number of drownings continues to rise each year, with the most recent being in 2017 when 8 people drowned, several of whom are still missing.

Niger River

The Niger River is the main river in Western Africa, and in 2010 it tragically took the lives of more than 5,000 people and 30,000 animals. When this 4,180 km long river overflows, it causes destruction to buildings and crops. It has left millions of African people without resources, as it destroys their vegetation and livestock, leading to starvation. Additionally, the river is a source of spreading diseases.

Mekong River

The Mekong River, which stretches for 4,350 kilometers, passes through several countries in Asia including China, Laos, Cambodia, Vietnam, Burma, and Thailand. Despite its journey through these nations, it ranks as the 11th longest river globally. Navigating this river is challenging due to its treacherous currents and unpredictable temperament. In 2000, a devastating flood occurred, resulting in the loss of 90 lives. Unfortunately, the river continues to experience recurring floods, with another destructive event in 2008 causing $66 million in damages. Additionally, the Mekong River is home to the endangered Siamese crocodile, which can only be found in certain areas along its course.

River Nile

The River Nile flows in Northeast Africa and was once considered the longest river in the world until a 2007 study gave that title to the Amazon River. Regardless of its length, the River Nile maintains its regal status. Stretching 6,853 kilometers, it is home to dangerous species such as snakes, spiders, and crocodiles. Even if you are able to evade these predators, diseases are still a threat.

Yenisei River

The Yenisei river in Russia, being the longest river at 3,487 kms, has a devastating impact on the surrounding areas. It runs through six Russian cities, causing numerous floods and wreaking havoc with its powerful current. The water of the river is highly toxic and radioactive, posing a health risk to the nearby residents.

Brisbane River

The Brisbane River, located in Queensland, Australia, is a popular destination for photographers seeking to capture its beauty from various perspectives. However, this picturesque river also has a dark side, as it has been the site of numerous drowning incidents and occasional severe flooding. Additionally, the river is home to a significant population of bull sharks, known for their aggression towards humans. Therefore, it is advisable to appreciate the river's beauty from a safe distance.

Congo River

The river that winds its way through Africa is commonly known as "The Heart of Darkness," and it's easy to see why. It ranks as the second largest river in the world in terms of water discharge and empties into the Atlantic Ocean. Navigating this river is nearly impossible due to its 3000-mile-long waterway, which includes a treacherous 75-mile-long canyon known as "The Gates of Hell." The mere thought of it is enough to send shivers down one's spine, let alone actually exploring it. The deepest point in the river has been measured at 220 meters.

Amur River

The Amur River in Russia is relatively safe in terms of its currents and lack of rocky depths. However, the major issue lies in its severe pollution. The water is so contaminated that Russian scientists have discovered fish in the river with bleeding ulcers, which is very concerning. If a person were to swim in this water, they would likely develop skin cancer and other painful diseases.