Reply #54: Read the whole article. The girls weren't arrested for the skinny dipping

[Bucky]

from the actual article:

The police say they found the girls intoxicated and unclothed and that the older sister had nearly hit the police cruiser when she reversed her car and tried to flee, said Const. Paul Eisenzimer.

She then fled on foot down the beach while the other two girls screamed and swore at the officer, he said.

Skinny dipping will normally just get you ordered to re-dress and depart the premises (I speak from experience here). Fleeing from cops while drunk and cussing them out is what gets you hauled off to jail.