A guess, not an answer. You'll see what everyone else said.
Machine-generated description — written by an image model, not by a person.
Two boys in red-striped swim trunks play in shallow water at a crowded beach, likely 1970s. Vibrant umbrellas and sunbathers fill the background, suggesting a public seaside resort. Authentic retro vibe captures mid-century beach culture.
1970sbeachplayretrobeachseasidepublicresort
What a machine spotted
A detector's list, not mine. It misses things and makes some up. Pick one to see where it looked.
Looks like these
A machine picked them, going by the picture alone. All from other rolls.