It was like that scene from American Graffiti. We used to go there pretty often - around 1969-70.
My friend would get home from school, uncap the headers on his Nova (327 cu in, 375 hp), pop on his wrinkle wall slicks, and head into the night. One time that I did not go, almost every other guy on my block was caught and arrested for "unlawful assembly".
Usually, we could get away and lie low by the Coast Guard building that housed the hydrofoil.
Those were some sweet days!