Polka Marina is a Merry-go-round

Carousel

A carousel , or merry-go-round, is an amusement ride consisting of a rotating circular platform with seats for riders...

 in amusement park

Amusement park

thumb|Cinderella Castle in [[Magic Kingdom]], [[Disney World]]Amusement and theme parks are terms for a group of entertainment attractions and rides and other events in a location for the enjoyment of large numbers of people...

 Efteling

Efteling

Efteling is the largest theme park in the Netherlands, and as it opened in 1952, it is one of the oldest theme parks in the world. Efteling is located in the town of Kaatsheuvel, in the municipality of Loon op Zand, and has received over 100 million visitors....

 in the Netherlands. It started operating in 1984.

History and details

Polka Marina is actually a combination of a carousel

Carousel

A carousel , or merry-go-round, is an amusement ride consisting of a rotating circular platform with seats for riders...

 and a mini-roller coaster, since the Cogs

COGS

* Cogs is an award-winning puzzle game for the PC, iPhone, iPad, Linux, Mac and netbook by Lazy 8 Studios, LLC.COGS, used as an acronym, may refer to:* Cost of goods sold*Shepparton, Victoria or City of Greater Shepparton* Parts of a gear system...

 are circling up and down on a Vekoma

Vekoma

Vekoma Rides Manufacturing B.V. is a roller coaster and thrill ride designer with its facilities based in the Netherlands. The company was founded in 1926 by Hendrik op het Veld under the name "Veld Koning Machinefabriek" and had first manufactured agricultural machinery and mining equipment...

 coaster track.

The diameter

Diameter

In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints are on the circle. The diameters are the longest chords of the circle...

 of the track is 18 meters, with 23 Cogs

COGS

* Cogs is an award-winning puzzle game for the PC, iPhone, iPad, Linux, Mac and netbook by Lazy 8 Studios, LLC.COGS, used as an acronym, may refer to:* Cost of goods sold*Shepparton, Victoria or City of Greater Shepparton* Parts of a gear system...

 riding the track.
In the center of the ride a 8 meter high whale

Whale

Whale is the common name for various marine mammals of the order Cetacea. The term whale sometimes refers to all cetaceans, but more often it excludes dolphins and porpoises, which belong to suborder Odontoceti . This suborder also includes the sperm whale, killer whale, pilot whale, and beluga...

 fountain

Fountain

A fountain is a piece of architecture which pours water into a basin or jets it into the air either to supply drinking water or for decorative or dramatic effect....

 propels a pirate into the air