The Cape Peninsula is a generally rocky peninsula

Peninsula

A peninsula is a piece of land that is bordered by water on three sides but connected to mainland. In many Germanic and Celtic languages and also in Baltic, Slavic and Hungarian, peninsulas are called "half-islands"....

 that juts out for 75 km (47 mi) into the Atlantic Ocean

Atlantic Ocean

The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 at the south-western extremity of the Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

n continent. At the southern end of the peninsula are Cape Point

Cape Point

Cape Point is a promontory at the southeast corner of the Cape Peninsula, which is a mountainous and scenic landform that runs north-south for about thirty kilometres at the extreme southwestern tip of the African continent in the Republic of South Africa. Table Mountain and the city of Cape Town...

 and the Cape of Good Hope

Cape of Good Hope

The Cape of Good Hope is a rocky headland on the Atlantic coast of the Cape Peninsula, South Africa.There is a misconception that the Cape of Good Hope is the southern tip of Africa, because it was once believed to be the dividing point between the Atlantic and Indian Oceans. In fact, the...

. On the northern end is Table Mountain

Table Mountain

Table Mountain is a flat-topped mountain forming a prominent landmark overlooking the city of Cape Town in South Africa, and is featured in the flag of Cape Town and other local government insignia. It is a significant tourist attraction, with many visitors using the cableway or hiking to the top...

, overlooking Cape Town

Cape Town

Cape Town is the second-most populous city in South Africa, and the provincial capital and primate city of the Western Cape. As the seat of the National Parliament, it is also the legislative capital of the country. It forms part of the City of Cape Town metropolitan municipality...

, South Africa

South Africa

The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

.

The peninsula was once an island

Island

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

, but about sixty million years ago it was joined to the mainland by the emergence from the sea of the sandy area now known as the Cape Flats

Cape Flats

The Cape Flats is an expansive, low-lying, flat area situated to the southeast of the central business district of Cape Town. To many people in Cape Town, the area is known simply as 'The Flats'....

. The towns and villages of the Cape Peninsula now form part of greater Cape Town.

The Cape of Good Hope is sometimes given as the meeting point of the Atlantic Ocean

Atlantic Ocean

The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 and Indian Ocean

Indian Ocean

The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...

. However, according to the International Hydrographic Organization

International Hydrographic Organization

The International Hydrographic Organization is the inter-governmental organisation representing the hydrographic community. It enjoys observer status at the UN and is the recognised competent authority on hydrographic surveying and nautical charting...

 agreement that defines the ocean boundaries, the meeting point is at Cape Agulhas

Cape Agulhas

Cape Agulhas is a rocky headland in the Western Cape, South Africa. It is the geographic southern tip of Africa and the official dividing point between the Atlantic and Indian oceans...

, about 200 km (120 mi) to the southeast. http://ioc.unesco.org/oceanteacher/OceanTeacher2/01_GlobOcToday/03_GeopolOc/s23_1953.pdf