Rolling houses with TP
Making tennis ball cannons out of tin cans
Adding an extra set of front forks to a Stingray bike (with a banana seat) to make a “chopper”
Didn’t need a fishing license for salt water and the were no real limits on just about anything.
Catching spiny lobster with a cotton mop or a Hawaiin sling
Beach-front property was dirt cheap and considered a bad use of money
Hitchhiking to the beach with a surf board and not worrying about getting killed