"Under the Water" is a pop song written in 1990 by Owen Bolwell and Stanley Paulzen, produced by Siew for Merril Bainbridge's first album The Garden (1995). It was released as the album's second single in July 1995 in Australia and February 1997 in the United States. The song is about a lover who drowned.
There were two music videos produced to promote the song, the first one for Australia and a second version for the United States. The original Australian version was a simple black and white video with Bainbridge walking around a forest and performing the song with a band. However, when Bainbridge broke in the U.S. with her previous single "Mouth", a sleeker video, directed by Martin Kahan, was produced for the American market. It was released in December 1996 and showed a man and a girl in a room filled with water with the man drowning at the end of the video.
"Under the Water" had moderate commercial success in Australia. In late July 1995 it debuted at number forty-six on the Australian ARIA Singles Chart. On its fifth week on the chart, it peaked at number four – making the song Bainbridge's second top ten single. The song spent a total of sixteen weeks in the top fifty and the Australian Recording Industry Association awarded the single a platinum certification for shipping 70,000 copies. It became the twenty-fourth highest selling single in Australia for 1995 selling an estimate of 80,000 copies around Australia. The song was nominated for an ARIA Award as the "Highest Selling Single" for 1996, but lost to "Let's Groove" by CDB.
The song was released in the United States on 18 February 1997 but failed to match the Top ten success of "Mouth", peaking at ninety-one and spending only six weeks in the Billboard Hot 100. It was Bainbridge's last song to date to chart in the U.S. Billboard Hot 100.