Hawaii offers some of the world's best snorkeling—crystal-clear waters, vibrant coral reefs, sea turtles, tropical fish, and unique experiences like night snorkeling with manta rays. Whether you're a first-timer or experienced snorkeler, there's a perfect spot for you.
We've compiled the top snorkeling destinations across all four main islands, with insider tips on when to go and how to get the best experience.
🏝️ Oahu Snorkeling
Hanauma Bay
Hawaii's most famous snorkeling spot and a protected marine sanctuary. The crescent-shaped bay is home to 400+ species of fish and frequent sea turtle sightings. Calm, shallow waters make it perfect for beginners.
- Best for: Beginners, families, fish variety
- Note: Reservations required; closed Mondays and Tuesdays
- Tip: Arrive early (before 9am) for best parking and visibility
Shark's Cove
North Shore's premier snorkeling spot with underwater caves, lava tubes, and abundant marine life. Best during summer when waters are calm.
- Best for: Experienced snorkelers, underwater exploring
- Warning: Only safe May-September; winter waves are dangerous
Electric Beach (Kahe Point)
Warm water discharge from a nearby power plant attracts dolphins, sea turtles, and large schools of fish. One of Oahu's best-kept secrets.
🐢 Explore Oahu Snorkel Tours
Guided tours with gear, transportation & local expertise
View Oahu Tours →🏝️ Maui Snorkeling
Molokini Crater
This crescent-shaped volcanic crater offers up to 150 feet of visibility—among the clearest in Hawaii. Home to 250+ fish species and protected from waves. Only accessible by boat tour.
- Best for: Crystal-clear visibility, serious snorkelers
- Tip: Book morning tours for calmest conditions
Turtle Town (Maluaka Beach)
Named for the green sea turtles that congregate here year-round. Shallow waters over coral gardens make turtle sightings almost guaranteed.
- Best for: Sea turtle encounters, easy beach access
Honolua Bay
Marine preserve on Maui's northwest coast with excellent coral and fish. Walk through a jungle path to reach the bay. Free and often uncrowded.
Black Rock (Ka'anapali)
Snorkel right off the beach at Ka'anapali's famous Black Rock. Excellent fish variety and sea turtle sightings. Watch the sunset cliff diving ceremony afterward.
🏝️ Big Island Snorkeling
Kealakekua Bay
This protected marine sanctuary near the Captain Cook monument offers Hawaii's best coral and fish diversity. Only accessible by boat, kayak, or strenuous hike.
- Best for: Pristine coral, fish abundance, spinner dolphins
- Access: Kayak tour recommended for best experience
Manta Ray Night Snorkel
Float on the surface as giant manta rays (up to 16-foot wingspan) glide inches below you, feeding on plankton attracted by lights. A bucket-list Hawaii experience.
- Best for: Once-in-a-lifetime experience
- Note: Tours depart at sunset from Kona; swimming ability required
Two Step (Honaunau Bay)
Named for the natural lava rock steps into the water. Excellent visibility, easy entry, and abundant marine life including sea turtles.
🏝️ Kauai Snorkeling
Poipu Beach
Kauai's most accessible snorkeling with calm waters and resident sea turtles. Lifeguard-protected beach is great for families.
Tunnels Beach (Makua)
North Shore reef with underwater lava tubes and caverns. Spectacular coral formations and fish variety. Best in summer when north swells subside.
Anini Beach
Protected by Hawaii's longest fringing reef, creating a calm lagoon perfect for beginner snorkelers and children.
Snorkeling Tips for Hawaii
- Best time of day: Morning (8am-noon) for calmest water and best visibility
- Reef-safe sunscreen: Required by law—chemicals in regular sunscreen kill coral
- Don't touch anything: Coral is fragile and marine life is protected
- Sea turtle etiquette: Maintain 10-foot distance (it's Hawaiian law)
- Check conditions: Surf reports vary by season and shore
- Consider a tour: Guides know the best spots and current conditions
Tour vs. DIY Snorkeling
Book a tour if:
- You want to visit spots only accessible by boat (Molokini, Kealakekua)
- You're a beginner and want instruction
- You prefer gear, transportation, and expertise included
- You want to combine snorkeling with other activities (whale watching, sailing)
DIY is fine for:
- Beach-accessible spots (Hanauma Bay, Poipu, Honolua)
- Experienced snorkelers comfortable with ocean conditions
- Flexible schedules and rental car access
Bottom Line
Hawaii's underwater world rivals its above-water beauty. From guaranteed turtle sightings at Maui's Turtle Town to the unforgettable manta ray night snorkel on the Big Island, there's an amazing snorkeling experience waiting on every island.
Browse all Hawaii snorkeling tours from verified local operators.