Hanauma Bay Nature Preserve isn’t just the most iconic snorkeling spot on Oʻahu—it’s one of the most breathtaking marine sanctuaries in the world. Carved into the remnants of a volcanic crater on the island’s southeast coast, Hanauma Bay offers shallow, protected waters rich in marine life. Whether you’re hoping to spot a Hawaiian green sea turtle (honu), explore vibrant coral gardens, or simply enjoy calm, beginner-friendly conditions, Hanauma Bay delivers a world-class snorkeling experience just 25 minutes from Waikiki.
Why Snorkel at Hanauma Bay
Hanauma Bay is a Marine Life Conservation District, meaning it’s highly regulated to protect fragile ecosystems. No fishing is allowed, and visitor numbers are limited—creating ideal conditions for thriving coral reefs and abundant sea life.
With clear, shallow water and a naturally sheltered bay, this spot is perfect for first-time snorkelers, children, and anyone who prefers calmer ocean conditions. Lifeguards are present daily, and the beach is easily accessible.
Hawaiian green sea turtles are frequent visitors to the reef, often seen grazing on algae near the rocks or swimming gracefully alongside snorkelers. They’re most active from mid-morning to early afternoon—just remember to float calmly and give them space.
Hanauma Bay is a living reef system home to butterflyfish, tangs, parrotfish, wrasse, and even the occasional moray eel. Float effortlessly above colorful coral gardens and watch as the reef reveals a new surprise with every kick.
Snorkeling Tips for Hanauma Bay
Arrive Early for the Best Experience
The bay opens at 6:45 AM, and the parking lot often fills within the first hour. Early arrival means fewer crowds, calmer seas, and the best underwater visibility.
Bring or Rent Gear
Rental gear is available on-site, but experienced snorkelers often prefer to bring their own for comfort and fit. If you plan to rent, arrive early—supplies can run out during peak hours.
Watch the Mandatory Safety Video
All first-time visitors must view a short educational film on reef protection and safe snorkeling before entering. It’s quick, helpful, and legally required.
Wear Reef-Safe Sunscreen
Only mineral-based sunscreens (zinc oxide or titanium dioxide) are allowed in Hawaiʻi. Or better yet, wear a long-sleeve rash guard to skip the lotion entirely and reduce chemical impact.
Respect Marine Life
Turtles, fish, and coral are protected. Stay at least 10 feet (3 meters) away from turtles, never feed or touch wildlife, and avoid stepping on the reef. If you’re still, calm, and patient—marine life will often come to you.
When to Visit Hanauma Bay
- Best Time to Snorkel: Early morning (6:45 AM–9:00 AM) for gentle surf and clear water.
- Turtle Activity: Mid-morning to early afternoon is when turtles are more likely to graze nearshore.
- Closed Days: Hanauma Bay is closed every Monday and Tuesday to allow the reef to rest and recover.
- Reservations Required: All non-residents must reserve entry in advance at honolulu.gov. Slots open two days prior at 7:00 AM HST and fill fast.
How to Get to Hanauma Bay
By Car
From Waikiki, take H-1 East until it becomes Kalanianaʻole Highway (Route 72). After passing Hawaii Kai and Koko Marina, look for signs to Hanauma Bay. The parking lot opens at 6:45 AM, costs $3 per vehicle, and closes when full.
By Bus
TheBus Route 22 (Beach Bus) departs from Waikiki and stops near the preserve. It’s an affordable option, but check schedules in advance—bus times may not align with entry windows.
By Tour Shuttle
Tour shuttles offer round-trip transport from Waikiki hotels and often include snorkel gear and reef-safe sunscreen. Great for visitors without a car or those wanting a hassle-free experience.
Plan Your Visit
Admission Fees
- Hawaiʻi Residents: Free (with valid ID)
- Non-Residents (13+): $25 per person
- Children 12 & Under: Free
- Active Duty U.S. Military: Free
- Parking: $3 per vehicle
- Snorkel Rental: ~$20 per set (optional)
Hours of Operation
- Open: Wednesday – Sunday, 6:45 AM to 4:00 PM
- Last Entry: 1:30 PM
- Beach Access Ends: 3:30 PM
- Closed: Monday & Tuesday
Responsible Snorkeling
This bay has made a remarkable recovery since its 2020 closure, with coral regrowth and wildlife populations bouncing back. Every snorkeler plays a role in preserving this progress.
- Never touch or feed marine animals.
- Float, don’t stand—even brushing against coral can destroy decades of growth.
- Follow all posted signs and lifeguard instructions.
- Wear a rash guard and skip the lotion where possible.
Nearby Attractions
Extend your adventure and explore the stunning southeast coast of Oʻahu:
Koko Head Crater Trail
A leg-burning hike with over 1,000 steps and unmatched panoramic views from the summit. A popular sunrise activity before snorkeling.
Halona Blowhole Lookout
This scenic lava tube shoots ocean spray sky-high when surf conditions are right. Look out for whales during winter months!
Sandy Beach
Just minutes away, Sandy’s is a favorite for wave watchers and expert bodyboarders. Not recommended for swimming due to strong shore breaks—but excellent for dramatic ocean photos.
