• Saharan Dunes can reach 180 metres in height.
• Many dinosaur fossils have been found in the Sahara.
• Why is it called the Sahara desert?
  The Sahara gets its name from the Arabic word sahra, which means 'desert'. 6. Sand dunes and sheets cover only around 25% of the Sahara's actual surface. This desert also has numerous other land features including salt flats, gravel plains, plateaus and even mountains where snow has been recorded.

• For me it is a good trip that if I could afford to do it when I was older I would do it without a doubt because it is very beautiful.

• It's the longest river on Earth.
• What is the Nile river known for?
  For thousands of years, the river has provided a source of irrigation to transform the dry area around it into lush agricultural land. Today, the river continues to serve as a source of irrigation, as well as an important transportation and trade route. 

Lake Victoria is one of the African Great Lakes. With a surface area of approximately 59.947 km². Lake Victoria is Africa's largest lake by area, the world's largest tropical lake, and the world's second-largest fresh water lake by surface area after Lake Superior in North America. In terms of volume, Lake Victoria is the world's ninth-largest continental lake, containing about 2.424 km³ of water. Lake Victoria occupies a shallow depression in Africa. The lake has an average depth of 40 m and a maximum depth of 80-84 m. The lake has a shoreline of 7.142 km. The lake's area is divided among three countries: Kenya occupies 6% (41.00 km2), Uganda 45% (31.000 km2), and Tanzania 49% (33.700 km²). The lake is home to many species of fish which live nowhere else, especially cichlids. Invasive fish, such as the Nile perch, have driven many endemic species to extinction.

The Mediterranean is a continental sea that connects with the Atlantic Ocean through the Strait of Gibraltar. Surrounded by Europe, Africa, and Asia, it witnessed the evolution of various ancient civilizations such as the Egyptians, the Phoenicians, the Hebrews, the Greeks, the Carthaginians, and the Romans. In oceanography, a Mediterranean Sea (also, Mediterranean Sea or Intramontaneous Sea), is a mostly enclosed sea that has limited deep-water exchange with the outer ocean, and in which water circulation is dominated by the difference in salinity and temperature.

The Red Sea is a gulf or basin of the Indian Ocean between Africa and Asia. The connection with the ocean is towards the South, through the Strait of Bab el-Mandeb and the Gulf of Aden. To the north is the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez. The Red Sea, whose name is not exactly known, is the northernmost tropical sea and is located between Africa and the Arabian Peninsula, in the middle of a large arid and hot region. It is said that it was given the name "Red" due to the change in color of its waters, which go from greenish blue to reddish.

The Strait of Bering is an arm of the sea located between the eastern end of Asia and the northwestern end of America. Its waters communicate the Chukotka Sea,to the north, with the Bering Sea to the south.
 168° 58' W
 65° 40' N 

The Andes, which run along the west side of South America, are one of the longest mountain ranges in the world. Its varied terrains include glaciers, volcanoes, grasslands, deserts, lakes, and forests. The mountains are home to pre-Columbian archaeological sites and fauna such as the chinchilla and the condor. From Venezuela in the north, the Andes range runs through Colombia, Ecuador, Peru, Bolivia, Argentina and Chile.
70°3'W
32°20'S

The Gulf of California is an extension of the Pacific Ocean and is located between the Baja California peninsula and the states of Sonora and Sinaloa, in the northwestern part of Mexico. It has a length of 1,126 km and its width varies between 48 and 241 km.
28°00'N  
-112°00'W

Australia is a country surrounded by the Indian and Pacific oceans. Its main cities (Sydney, Brisbane, Melbourne, Perth and Adelaide) are coastal. Its capital, Canberra, is located in the interior. The country is known for the Sydney Opera House, the Great Barrier Reef, a vast wilderness area known as Outback, and unique animal species such as the kangaroo and platypus.km and the north at south, 3.200 km.The terrain is mainly flat, with large low desert plateaus: approximately the western half of this island-continent is an extensive arid plateau, the eastern half is occupied by rather depressed steppe plains, the main fertile lands are located in the southeastern plain.

The Great Victoria Desert is an inhospitable, arid, and sparsely populated ecoregion in southern Australia. It is located between the states of South Australia and Western Australia and has a large number of small sand dunes, extensive grasslands and saltwater lakes. It extends over 700 km wide (from East to West) and an area of ​​424,400 km². Thunderstorms are relatively common in the Great Victoria Desert, averaging around 200-250mm per year. Daytime temperatures in summer are around 32-40 °C. In winter the temperatures are between 18-23 °C, so it never snows in the desert.

Lake Eyre, officially known as Kati Thanda–Lake Eyre, is, on the rare occasions when it is full, the largest lake in Australia and also the lowest point in the country (approximately 15m below sea level). sea). It is an endorheic lake that drains the Lake Eyre basin.The lake is located in the desert area of ​​central Australia, north of South Australia. The Lake Eyre basin is a huge endorheic system around the lake, the lower part of which is covered in a salty layer characteristic of endorheic systems, produced by the seasonal expansion of the volume of water and the consequent evaporation of trapped water. Even in the warmer seasons, there is almost always some water left in the lake, which is usually collected in a series of smaller underground lakes. During the rainy season, the rivers of the northeast (in the outback, in Queensland) flow into the lake. The amount of monsoon water determines whether the water will make it to the lake, and if it does, how deep it will go. The lake can also suffer small and moderate floods, caused by the volume of rains that fall in the area. Typically, there are 5 ft (1.5 m) floods every three years; of 4 m (13 ft), every decade and a full or near flood, four times every 100 years. Lake water evaporates quickly, so minor and medium floods dry up by the end of the following summer.

The Saint Lawrence River is one of the main rivers in North America, the collector of the Great Lakes that connects with the Atlantic Ocean, in the Gulf of Saint Lawrence.
The Saint Lawrence River and Seaway System is a large hydrographic system in east-central North America. It crosses the interior of the continent and provides the main drainage of the Great Lakes Basin.
14°3'0" S
61°34'60" W

The Orinoco River is one of the most important rivers in South America that is born and flows mostly through Venezuela and a part through Colombia.
The Orinoco River is the fourth longest South American river, 2,800 km if the Orinoco Guaviare system is considered and 2,140 km alone, and with an average flow of about 33,000 m³/s, it is the third largest river in the world, after the Amazon and of the Congo.
Location: latitude 1° 55' North; Longitude: 68° 36' West.

The Yucatan Peninsula separates the Gulf of Mexico from the Caribbean Sea, which encompasses 3 Mexican states and parts of Belize and Guatemala. In the Caribbean, Mexico's Riviera Maya strip of beach resorts is bounded by 2 popular destinations: Cancun, with its high-rise hotels and nightlife, and further up the coast, sleepy Tulum, a rare example on the coast. of the Mayan ruins found in the interior of the peninsula.
To the north 22°35'10'', to the south 19°33'04'' north latitude; to the east 87°32'00'', to the west 90°24'26'' west longitude. Merida. The state of Yucatan represents 2.0% of the country's surface.
It also has 340 km of coastline, which represents 3.1% of the national total. The geographic limits, in geographic coordinates, are 21° 36' north, 19° 32' south (of north latitude); 87° 32' east, 90° 25' west (west longitude).