The Philippines in Asia is an archipelago. Other examples of archipelagos are the Lakshadweep Islands in the Arabian Sea and the Andaman & Nicobar Islands in the Bay of Bengal.

The largest bay in the world is the Bay of Bengal. It has a shoreline of about 3620 km from south-eastern Sri Lanka to Pagoda Point in Myanmar. It measures 2745 km across its mouth.

There are several famous beaches in Florida, USA. An example is Daytona Beach.

Cape of Good Hope in South Africa, Kanya Kumari (formerly Cape Comorin) in India, and Cape Kennedy (formerly Cape Canavarel) in USA are examples.
The Atlantic and Pacific Oceans meet at Cape Horn.

The largest delta is formed by the Ganga and Brahmaputra rivers in West Bengal (India) and Bangla Desh. It covers an area of 76800 km.

The largest desert in the world is the Sahara desert in Northern Africa. It is hot and sandy. The Gobi desert in Asia is rocky.

Estuary and delta are the two kinds of river mouths. Rivers that do not carry much silt flow as one continuous stream into the sea. The mouth of such a river is affected by tides and is called an estuary.

The world's longest glacier is the Lambert Glacier discovered in the Australian Antarctic territory. It is 64 km wide. With its upper section known as the Mellor Glacier, it measures at least 400 km in length.

The Gulf of Mexico is the largest gulf in the world. It has a shoreline of 4990 km from Cape Sable (Florida) to Cabo Calochie (Mexico).
The Gulf of Bothnia lies between Sweden and Finland.

New York Harbor is the largest harbor in the world.

An iceberg is a huge piece of freshwater ice that breaks off from a snow-formed glacier or ice shelf and floats in open water.

The world's largest island is Greenland (Australia is considered a continent). Greenland is thrice the size of Borneo (the second largest island in the world) and nine times as big as Honshu (the largest island of Japan).
Japan, New Zealand and Sri Lanka are examples of island countries.

The Isthmus of Panama connects the continents of North America and South America.

An oasis is sometimes found in a desert because of a spring or pool of water. People find it convenient to live and trees find it easier to grow near an oasis.

The southern part of India is a peninsula. It is surrounded on three sides by the Arabian Sea, the Indian Ocean and the Bay of Bengal. The world's largest peninsula is Arabia with an area of about 3237000 sq. km.

Low flat land along a coast is referred to as a coastal plain.

A plateau or tableland is a large stretch of land that is flat and located at an altitude.

The Straits of Magellan are at the southern tip of South America.
The longest strait in the world is the Strait of Malacca (about 615 km) between West Malaysia and Sumatra.
The Palk Strait connects the Indian Ocean and the Bay of Bengal. It divides India and Sri Lanka.

In India, the Jamuna and the Chambal are tributaries of the River Ganga whereas the Beas and the Sutlej are tributaries of the River Indus.

Valleys may be broad or narrow. Valleys through which rivers or streams flow are referred to as river valleys.