The melody starts on the 9th fret on the 5th string, then on the 7th, 8th and 9th fret on the 4th string and this repeats three times. Then the same melody line is repeated on the 4th and 3rd string four times, before it goes up two frets to the 11th fret and is alternated. Then there is a bridge with B, E, B, F#, E, B, F#, and the melody starts all over again.
I found a video for the song with a compilation of scenes from some 60’s beach movies. The opening of the video includes Annette Funicello and Frankie Avalon.