Photo: UnsplashSnorkeling in Hawaii
Honu, parrotfish, reef sharks, the occasional manta — Hawaii has some of the most reliable snorkel water in the U.S.
Best season
Year-round
Calmest at dawn
Typical cost
Free–$150
Shore vs. boat tour
Where
Every island
Molokini · Hanauma · Kealakekua
Skill level
Beginner-friendly
Non-swimmer options too
Hawaiian waters are warm year-round (74-82°F), generally clear, and bursting with marine life — much of it endemic. About 25% of the fish species you'll see exist nowhere else on Earth.
Snorkeling is cheap (your own gear), accessible (drive to the beach), and almost everywhere on the islands. The trick is finding the right spot for your skill level and the time of year.
Reef-safe sunscreen is the law in Hawaiʻi — no oxybenzone or octinoxate. Mineral (zinc) only. The reef thanks you.
The rundown
What to know
What you'll see
Green sea turtles (honu), parrotfish, butterflyfish, tangs, moray eels, and the state fish — the humuhumunukunukuāpuaʻa. About a quarter of Hawaiʻi's reef fish are endemic, found nowhere else on Earth.
Shore vs. boat
Shore snorkeling is free and everywhere — you just need gear and calm water. Boat tours reach protected spots like Molokini and Kealakekua Bay you can't easily swim to, and usually include gear, guides, and lunch.
Reef-safe & responsible
Hawaiʻi law bans sunscreens with oxybenzone or octinoxate — bring mineral (zinc) sunscreen or wear a rash guard. Never stand on or touch coral, and give honu a respectful distance; they're protected by law.
Island by island
Where to go
Oʻahu
Hanauma Bay is the classic (reserve ahead); Electric Beach and Sharks Cove suit stronger swimmers.
Oʻahu events →Maui
1 upcomingMolokini Crater and Turtle Town are world-famous; boat tours leave from Māʻalaea and Lahaina.
Maui events →Big Island
Kealakekua Bay and Two Step at Hōnaunau have some of the clearest water in the state.
Big Island events →Kauaʻi
Summer calms the north shore (Tunnels/Makua); Poʻipū on the south shore is reliable year-round.
Kauaʻi events →In pictures
Snorkeling in Hawaii
Know before you go
Plan your visit
Best conditions
Go early — trade winds and swell build by late morning. Aim for calm, clear water near slack tide, and never turn your back on the ocean.
Gear
Rent mask, snorkel, and fins from a shop for a few dollars a day, or bring your own. A rash guard doubles as sun and reef protection.
Sunscreen
Mineral (zinc-oxide) only — oxybenzone and octinoxate are banned statewide to protect the reef.
Safety
Snorkel with a buddy, stay within your ability, and heed lifeguard flags. Winter high surf makes many shore spots unsafe.
Common questions
Best time of day?
Early morning, before the trade winds pick up at 10-11 AM. Visibility is best at slack tide (lookup at tidesandcurrents.noaa.gov).
Rent or bring my own gear?
Rent if you're traveling — checking dive bags is annoying. $15-25/day for mask + snorkel + fins. Quality rentals at Snorkel Bob's, dive shops on every island.
Where shouldn't I snorkel?
Hanauma Bay (Oʻahu) on weekends without a reservation (gohaena.com required), winter North Shore (huge surf), any beach with a red lifeguard flag.
Sharks?
Reef sharks (4-6 ft, shy) are common and harmless. Tiger and Galapagos sharks (the dangerous ones) are rare and usually deep. The honu (turtles) are protected; admire from 10 ft, never touch.
Upcoming snorkeling in hawaii events
Book & reserve
Where to snorkel with a guide
Established operators for this experience. AlohaCalendar doesn't sell tickets — book or reserve direct on their own sites.
Trilogy Excursions
Māʻalaea, MauiFamily-owned sailing company running Molokini snorkel excursions and sunset sails aboard its catamarans.
Visit site ↗Four Winds II (Maui Classic Charters)
Māʻalaea, MauiFamily-friendly glass-bottom catamaran Molokini snorkel with a viewing room for non-swimmers.
Visit site ↗Fair Wind Cruises
Kona, Big IslandDaily snorkel tours into the protected waters of Kealakekua Bay, home of the Captain Cook Monument.
Visit site ↗Body Glove Cruises
Kailua-Kona, Big IslandLocally owned since 1988, offering Kona snorkel tours and manta ray night snorkels.
Visit site ↗Hanauma Bay Nature Preserve
City & County of HonoluluOʻahu's protected marine-life conservation area — entry requires an advance reservation through the City's official system.
Visit site ↗Holo Holo Charters
Port Allen, KauaʻiCatamaran snorkel and sailing tours along the Nā Pali Coast, plus extended trips toward Niʻihau.
Visit site ↗Run one of these outfits? Feature your business →
Book it
Tours & experiences
AlohaCalendar may earn a commission from bookings made through these partners — see our affiliate disclosure.
Things to Do in Hawaii
Tours, activities & unforgettable experiences
$119+Snorkeling with Dolphins Catamaran
$119+Sail along Oahu's west coast, snorkel with dolphins and sea turtles on a luxury catamaran.
$59+Waikiki Sunset Sail
$59+Sail from Waikiki Beach on a catamaran as the sun sets over the Pacific with complimentary drinks.
$89+Molokini Snorkel & Whale Watch
$89+Snorkel the crystal-clear waters of Molokini Crater and watch for humpback whales (seasonal).
$99+Manta Ray Night Snorkel
$99+Swim with giant manta rays on the Kona Coast — one of Hawaii's most iconic experiences.
For business owners
Run a Hawaiʻi snorkel tour or dive shop?
Get in front of visitors while they're planning their trip and searching for exactly what you offer. List your business free and reach travelers island by island.
Featured in seasonal guides
Maui Whale Season
The winter the humpbacks come home to Maui
Open guide →
Big Island Volcanoes
Where the islands are still being built
Open guide →
Oʻahu North Shore
Where winter sends the world's biggest rideable waves
Open guide →
Kauaʻi Nā Pali Coast
The roadless coast you reach only by sea, air, or foot
Open guide →