Seven wonders of the underwater world
The Seven Underwater Wonders of the World was a creation of CEDAM International. The CEDAM acronym stands for: Conservation, Education, Diving, Awareness, and Marine-Research. In 1989 CEDAM brought together a panel of distinguished marine scientists, including Dr. Eugenie Clark, to pick underwater areas which they considered to be worthy of protection. The results were announced at The National Aquarium in Washington DC by Lloyd Bridges of Sea Hunt fame.
Palau
Palau (pronounced /pəˈlaʊ/), officially the Republic of Palau (Palauan: Beluu er a Belau), is an island nation in the Pacific Ocean, some 500 miles (800 km) east of the Philippines and 2000 miles (3200 km) south of Tokyo. Having emerged from United Nations trusteeship (administered by the United States) in 1994, it is one of the world’s youngest and smallest nations. In 1989 Palau was ranked and listed by CEDAM International as the ranking Number 1 Underwater Wonder of the World out of the seven underwater wonders. It is sometimes referred to in English under its native name Belau.
Belize Barrier Reef
The Belize Barrier Reef is a series of coral reefs straddling the coast of Belize, roughly 300 m (0.2 mile) offshore in the north and 40 km (25 mile) in the south within the country limits. The Belize Barrier Reef is a 300 km (185 miles) section of the Mesoamerican Barrier Reef System which is continuous from Cancun on the northeast tip of the Yucatan Peninsula of Mexico and continues through to offshore Guatemala, making it the second largest coral reef system in the world after the Great Barrier Reef in Australia. It is Belize’s top tourist destination, attracting almost half of its 260,000 visitors, and vital to its fishing industry.
C
harles Darwin described it as “the most remarkable reef in the West Indies” in 1842.
Great Barrier Reef
The Great Barrier Reef is the world’s largest coral reef system, composed of over 2,900 individual reefs and 900 islands stretching for 2,600 kilometres (1,616 mi) over an area of approximately 344,400 square kilometres (132,974 sq mi). The reef is located in the Coral Sea, off the coast of Queensland in northeast Australia.
Deep-Sea Vents
A hydrothermal vent is a fissure in a planet’s surface from which geothermally heated water issues. Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart, ocean basins, and hotspots.
Hydrothermal vents are locally very common on Earth because it is both geologically active and has large amounts of water on its surface and within its crust. Common land types include hot springs, fumaroles and geysers. The most famous hydrothermal vent system on land is probably within Yellowstone National Park in the United States. Under the sea, hydrothermal vents may form features called black smokers.
Galápagos Islands
The Galápagos Islands (Official name: Archipiélago de Colón; other Spanish names: Islas de Colón or Islas Galápagos, from galápago, “saddle”—after the shells of saddlebacked Galápagos tortoises) are an archipelago of volcanic islands distributed around the equator, 525 nautical miles (972 km/604 mi) west of continental Ecuador in the Pacific OceanCoordinates: 0°40′S, 90°33′W.
The Galápagos archipelago, with a population of around 40,000, is a province of Ecuador, a country in northwestern South America, and the islands are all part of Ecuador’s national park system. The principal language on the islands is Spanish.
Lake Baikal
At 1,637 meters (5,371 ft), Lake Baikal is the deepest lake in the world, and the largest freshwater lake in the world by volume, holding approximately twenty percent of the world’s total surface fresh water. Like Lake Tanganyika, Lake Baikal was formed in an ancient rift valley and therefore is long and crescent-shaped with a surface area (31,500 km²) less than half that of Lake Superior or Lake Victoria. Baikal is home to more than 1,700 species of plants and animals, two thirds of which can be found nowhere else in the world and was declared a UNESCO World Heritage Site in 1996.
Olkhon, the largest island in Lake Baikal, is the fourth-largest lake-bound island in the world. More than 25 million years old, it is the oldest such lake as well.
Northern Red Sea
The Red Sea is an inlet of the Indian Ocean between Africa and Asia. The connection to the ocean is in the south through the Bab el Mandeb sound and the Gulf of Aden. In the north are the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez (leading to the Suez Canal). The Red Sea is a Global 200 ecoregion.
Occupying a part of the Great Rift Valley, the Red Sea has a surface area of about 438,000 km² (169,100 square miles ). It is roughly 2250 km (1398 mi) long and, at its widest point at 355 km (220.6 miles) wide. It has a maximum depth of 2211 m (7254 ft) in the central median trench and an average depth of 490 m (1,608 feet ), but there are also extensive shallow shelves, noted for their marine life and corals. The sea is the habitat of over 1,000 invertebrate species and 200 soft and hard corals and is the world’s most northern tropical sea.
