Hanauma Bay Snorkeling: Reservations, Tips, and What to Expect
Hanauma Bay is Oahu's top snorkeling spot. Here is how to get a reservation, what gear to bring, and the marine life you can expect to see.
Getting a reservation (the hard part)
Reservations open at pros8.hnl.info exactly 48 hours before your visit, at 7:00 AM Hawaii time. They typically sell out in under 10 minutes during peak season. Set an alarm, log in at 6:55 AM, and refresh.
If you miss out, walk-up entry is sometimes available after 12 PM when reserved guests don't show — line up by 11:30 AM and bring cash.
The mandatory orientation video
Every first-time visitor (in the past 12 months) must watch a 9-minute conservation video before entering the bay. It plays continuously at the theater near the parking lot.
What you'll see underwater
Hanauma's reef hosts more than 450 species of fish, including bright yellow tang, parrotfish, the state fish (humuhumunukunukuapua'a), and frequently green sea turtles. Visibility is best in the morning before the trade winds pick up.
What to bring
- Reef-safe sunscreen (mineral, oxybenzone-free — required by Hawaii law)
- Mask, snorkel, and fins (rentals available on site for ~$20)
- Rash guard for sun protection over the reef
- Water shoes — the entry beach has coral fragments
- Cash for parking ($3) and walk-up entry if needed
Frequently asked questions
How far in advance can you reserve Hanauma Bay?⌄
Exactly 48 hours. Reservations open daily at 7:00 AM Hawaii Standard Time on pros8.hnl.info for the day two days later.
How much does Hanauma Bay cost?⌄
$25 per non-resident over age 12. Hawaii residents and children 12 and under enter free. Parking is $3 per vehicle.
What days is Hanauma Bay closed?⌄
Hanauma Bay is closed Mondays and Tuesdays every week to let the reef rest, plus Thanksgiving, Christmas, and New Year's Day.
Is Hanauma Bay good for beginners?⌄
Yes. The inner reef is shallow (2–10 ft), calm, and lifeguarded — making it the most beginner-friendly snorkeling spot on Oahu.
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