"Nagisa no Sindbad" (渚のシンドバッド, Nagisa no Shindobaddo, lit. "Sindbad of the Beach") is Pink Lady's fourth single release, released on June 10, 1977, with a total of 1,450,000 sales, This single stayed at the number-one spot for eight weeks. According to Oricon, this was the best selling single of 1977. The song's dance choreography uses a beach motif, with emphasis on swimming and surfing. A re-recorded version of the song was included on the two-disc greatest hits release, INNOVATION, released in December 2010.