Buster Keaton made a 'Beach' movie in 1917!
If you want to see Buster Keaton in a beach movie, see "CONEY ISLAND (1917)" wherein he plays a lifeguard who gets the girl (in a stunning stripped bathing suit!) in the end.
Awesome pratfalls and stunts that probably inspired Jackie Chan! His pure physicality in his youth makes all the guys in the '60's "Beach" movies look like a bunch of wimps!