An ocean (from , Okeanos (Oceanus) in Greek) is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface (an area of some 361 million square kilometers) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. More than half of this area is over 3,000 meters (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 31 to 38 ppt.

Ocean is a British independent local radio station serving South Hampshire, West Sussex and the Isle of Wight primarily for Portsmouth and Southampton. Originally called Ocean Sound it plays popular adult contemporary (AC) music together with hourly local news and information. Recently the station has adopted more of a rock oriented sound. The station is unusual in having two sister stations - Power FM (103.2 MHz), also serving South Hampshire and the Isle of Wight, and Capital Gold 1170/1557 AM. Power FM is a complementary station, featuring mainly contemporary pop and dance music, whilst Capital Gold is a syndicated Oldies music station, with local hourly news. Ocean broadcasts on 96.7 MHz and 97.5 MHz FM, DAB Digital Radio and online http://www.oceanfm.com/.

The Ocean is a song by English rock band Led Zeppelin, from their 1973 album Houses of the Holy. "The Ocean" refers to the sea of fans seen from the stage at Led Zeppelin concerts, to whom this song was dedicated. It is one of the few Led Zeppelin songs where all four members shared the writing credit.

The intro and chorus (the main riff) of this song are done in an alternating 4/4 and 7/8 beat, and the song is in a 4/4 beat in the verses and the latter part of the song. The voice on the intro is drummer John Bonham. When he says, "We've done four already but now we're steady, and then they went 1, 2, 3, 4!" he is referring to the takes. They had tried to record it four times prior but couldn't get it right, so as a pep talk he said this famous line.

At approximately 1:37-1:38 into the song and again at around 1:41, a telephone can be faintly heard ringing in the background. Some speculate that this was intentional - the sheet music (printed after the fact) that accompanies the CD box set has the word "ring" printed twice above the percussion tab of this song. Others are of the opinion that while Led Zeppelin recorded the song a ringing phone was accidentally captured in the mix. There is also a noise heard about 1:59 which sounds like someone pronouncing "c" as in "cat". This occurs again at about 2:12.

In the last line, the "Girl who won my heart" is a reference to Robert Plant's daughter Carmen, (born November 21, 1968), who was three years old at the time of recording. In concert, Plant always updated the lyric to reflect her current age, as captured on the Led Zeppelin DVD which features the band's performance of the song at Madison Square Garden in 1973.

This is one of the few Led Zeppelin songs in which it is possible to hear the squeak of John Bonham's bass drum pedal in the studio, the others being "Since I've Been Loving You" from 1970's Led Zeppelin III, "Ten Years Gone" from 1975's Physical Graffiti, and "Bonzo's Montreux" from 1982's Coda.

The song is also known for a lyric intentionally misprinted on the insert sleeve of the LP. A lyric referring to "The Hellhound" (a homage to Robert Johnson who, as legend has it, could not have received such talent without meeting the devil and his "hellhound" at the "crossroads") was deemed unfit to print in the lyric sheet and was changed to the nonsense phrase "high hopes hailla".

The hard rock song unwinds to a coda consisting of a guitar solo and a doo-wop homage. Though barely audible due to all the guitar overdubs, during the last minute or so John Paul Jones and John Bonham sing for one of the only times on a Led Zeppelin album, as they harmonize the "doo-wop" phrase. During this part, Plant can softly be heard singing something along the lines of "I'm sorry, I'm sorry, I'm sorry, yeah!" (Or "I'm so, I'm so, I'm so glad!")

A cover version of "The Ocean" was recorded by Jason Bonham, son of Led Zeppelin drummer John Bonham, and released on his 1997 album In the Name of My Father - The Zepset

The Beastie Boys sampled this song on "She's Crafty." This wasn't the Beastie Boys' first use of Led Zeppelin, as they also famously sampled some of Bonham's drums from "When the Levee Breaks" for their track "Rhymin' And Stealin'". Robert Plant used parts of this song (and other Led Zeppelin songs) for his solo song "Tall Cool One," reportedly in response to the earlier sampling by the Beastie Boys. Additionally, Fort Minor sampled this in their song, "Dolla."

"The Ocean" is the seventh track of U2's debut album, Boy. The song is U2's shortest, at just over a minute and a half in length. Adam Clayton's bassline is one of the most notable elements of the song.