Little Beach is Hawaii's only real nude beach in that the beach is both popular and most of the patrons come here specifically to experience nude sunbathing and swimming, and many of the visitors to this beach are island residents. Of course you can still visit this beach if you want to keep your clothes on, but this really is the place to let go and experience swimming or sun bathing naked, rather than a place for curious onlookers.
Although nude sunbathing at State Parks is technically illegal (and nudity at beaches in Hawaii is not the norm), authorities don't bother nudists when they stick to the known nude beaches such as Little Beach.
As seen in the aerial photo, Little Beach is just north of
Big Beach and accessed via the the paid parking for the state park, and closes at 4pm on weekends.