The Turtles, June 1969, at the Surf, Nantasket Beach [Mass]. Unfortunately, they would shortly break up [screwed by their record company and managers].
Later Mark Volman and Howard Kaylan [Flo & Eddie] played with the late & great Frank Zappa & the Mothers.
I also saw them again as Flo & Eddie, the opening act for Alice Cooper's "Billion Dollar Baby Tour" at Pirate's World in Miami, in April 1973. What great performers, impressionists, and satirists...they had the crowd in laughing hysterically with their ad-lib in "Nikki Hoy"
Both venues are long since gone!