Hanauma Bay Nature Preserve
O‘ahu, Hawaii, US

Hanauma Bay Nature Preserve on O‘ahu is a protected marine conservation area within a volcanic crater, famed for its clear waters and abundant reef life. With a $25 entry fee, it ranks among the island’s top‑visited parks, earning a 4.4 rating from nearly 20,000 reviewers.
Why choose Hanauma Bay Nature Preserve
You’ll glide over vibrant coral gardens that few other Hawaiian sites can match, feeling the pulse of a living underwater ecosystem. The experience blends easy access with genuine conservation effort, giving you a sense of stewardship that typical beach outings lack.
Best for: Snorkeling · Families · First-timers · Photography
Start your Hanauma Bay morning here
Begin with snorkeling at Hanauma Bay, then relax with a coffee nearby before heading back to the shore.
- Morning — Hanauma Bay Nature Preserve
- Lunch — Coffee nearby
- Afternoon — Hanauma Bay Nature Preserve
Visit tips
- Arrive before 8:30 to secure parking and avoid the main crowds.
- Rent snorkel gear on site; the reef is best seen from the shallow entry point.
- Arrive early; parking fills quickly, especially on weekends.
- Bring reef‑safe sunscreen and plan at least 3 hours for snorkeling.
Plan your visit
- Recommended duration: 3–4 hours
- Best time of day: Early morning, before 9:00
- Entry: $25
- Booking: not required — tickets at the gate
- Category: park
- Rated 4.4 by 2547 reviewers
- Tags: snorkeling, marine conservation, family friendly, popular spot
More things to do in O‘ahu
- USS Arizona Memorial
- Diamond Head State Monument
- Diamond Head Summit Trail
- Waikiki Beach
- Pearl Harbor
- Pearl Harbor National Memorial
See all things to do in O‘ahu or plan a full O‘ahu itinerary with Next Getaway.