Hanauma Bay
Permit or reservation needed
Reservation required (online, 48 h ahead); closed every Mon and Tue. Reopened Aug 19, 2026 after a sewer-project closure; city says another temporary closure is expected in early 2027. Commercial scuba needs a city permit.
Source: hawaiinewsnow.com, hanaumabaystatepark.com. Checked Oct 5, 2026