Watermark was reissued in 1989, 1991, and 2009 the first two contain " Storms in Africa (Part II)" as a bonus track the latter was a Japanese release with a second entitled "Morning Glory".
Four singles were released from the album, including the international top-ten hit " Orinoco Flow", which spent three weeks at number one in the United Kingdom. To promote the album, Enya embarked on a worldwide promotional tour which included interviews, appearances, and live performances. It was certified quadruple platinum by the British Phonographic Industry (BPI) and the Recording Industry Association of America (RIAA) for shipments of 1.2 million and four million copies across the United Kingdom and the United States, respectively. It peaked at number five on the UK Albums Chart, number twenty-five on the Billboard 200 in the United States, and reached number one in New Zealand and Switzerland. Watermark received many positive reviews from critics and it became an unexpected commercial success, which propelled Enya to worldwide fame. Watermark features music in different styles, displaying Enya's sound of multi-tracked vocals with keyboards, percussion instruments, and elements of Celtic, ambient, and New-age music, though Enya believes her music does not belong in the latter genre. It was initially recorded in Ireland in demo form before production relocated to London to re-record, mix, and master it digitally.
Enya recorded Watermark in ten months with her longtime collaborators, manager, producer and arranger Nicky Ryan and his wife, lyricist Roma Ryan. Her contract allowed her considerable artistic and creative freedom, with minimal interference from the label and no deadlines to have albums finished. After the release of her previous album Enya (1987), she secured a recording contract with Warner after a chance meeting with chairman Rob Dickins, who had become a fan of her music.
Watermark is the second studio album by Irish singer, songwriter and musician Enya, released on 19 September 1988 by WEA.