Hanauma Bay
Oahu, Hawaii · 1–4 m · often 10–20 m · morning, calmer
A flooded volcanic crater and marine life conservation district; timed tickets now manage the crowd that made the bay famous.
Darker cells mean a higher score for this topic on that metric.
Accessibility86
Skill ceiling40
Gear load26
Risk34
Seasonality42
Wow factor74
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Last reviewed Sources & creditsMedia creditsMethodology
Quick answers
Which local rescue or training agency should I check first?
Use the local lens: coastguard/federation norms and the shop briefing for that bay — not a blog visibility claim.
How is this different from freediving?
Freediving is intentional breath-hold depth. Snorkeling is surface breathing with optional brief ducks. The freedive chapters cover blackout risk.
What does “snorkelling” vs “snorkeling” mean?
The same activity. British English prefers the extra l; this atlas uses the Wikipedia title Snorkeling.
Can children snorkel?
In warm, still, shallow water with touch supervision and a mask that fits. A full-face gadget is not a teacher.
Why do masks fog?
Spit or a drop of baby shampoo on a clean lens; toothpaste “scrub” myths scratch coatings. Rinse after sunscreen hands.
Are full-face snorkel masks a good idea?
They have a documented CO2 and panic problem in some designs. A conventional mask and snorkel remain the standard.
These are well-known snorkel places with typical depth bands. Visibility and wind change; parks publish the day sheet.
A famous name is not a weather forecast. Start in the marked shallows.
Points
Lady Elliot Island
Great Barrier Reef, AU · 1–6 m · often 10–25 m · May–Nov popular
A coral cay at the Reef’s southern end with house-reef snorkelling and a research station culture.
Molokini Crater
Maui, Hawaii · 2–10 m · often 15–30 m · morning trips
A crescent tuff cone; the inner crater is the classic boat-snorkel, the back wall is a current dive.
Menjangan Island
West Bali, Indonesia · 2–8 m · often 10–20 m · Apr–Nov drier
A park island with wall-edge snorkelling from boats; temple and deer as much as coral.
Cayo Coral / Hol Chan shallows
Belize · 1–4 m · variable · Nov–Jun drier
Hol Chan Marine Reserve’s shallows and nearby cayes are the textbook Caribbean snorkel park.
Poor Knights Islands
New Zealand · 2–8 m snorkel · often 15–30 m · Feb–Apr warmest
A Jacques Cousteau-praised subtropical reserve; snorkeling sits above a famous scuba wall.
Ilha Grande / Lagoa Azul
Brazil · 1–5 m · variable · Dec–Mar summer
A sheltered Brazilian island snorkel, crowded on holidays, still a real Atlantic tropical stop.
Apo Island shallows
Negros, Philippines · 2–8 m · often 10–20 m · Mar–Jun popular
Community-protected reef; snorkeling on the shallows, scuba on the drop. See the Philippines chapter.
Tips
- Morning over afternoon — Wind and boats usually worsen.
- Ask where the sand is — Entries are a sand or rubble problem, not a coral problem.
- Ticketed parks — Hanauma-style systems are a feature. Walk-up disappointment is the alternative.
- House reef first — A resort lagoon teaches the mask before a point-break boat.
Famous snorkel names are parks and cays. The skill still fits in a quiet municipal lagoon.