Waikiki Glass-Bottom Boat Cruise to Diamond Head — Oʻahu Marine Life & Reef Views
Glide from Kewalo Basin toward Diamond Head aboard a glass-bottom catamaran and peer through magnified viewports into Hawaiʻi’s nearshore reefs. This one-hour cruise blends marine viewing with local storytelling and easy, family-friendly boarding.
The Experience
Before You Go
Check in early
Arrive 20 minutes before departure at Slip F21 (look for the big red sign) to secure preferred seating and boarding priority.
Use reef-safe sunscreen
Apply mineral-based sunscreen before boarding to protect coral and reduce reapplication in the sun-drenched cockpit.
Plan for motion sensitivity
Take motion-sickness medication ahead of time if you’re prone to seasickness; seating midship reduces roll.
Bring a camera and shade
A polarizing filter or sunglasses improve underwater clarity through the glass ports; a hat keeps glare down on deck.
Local Knowledge
Hidden Gems
- •Walk the Ala Moana Beach Park seawall toward Magic Island for sunset views after your cruise
- •Visit the nearby Kewalo Basin Fish Market for fresh local seafood and island-style plate lunches
Wildlife
- •Honu (green sea turtle)
- •Spinner dolphins
Conservation Note
Operators encourage reef-safe sunscreen, no-touch policies for marine life, and maintaining distance from turtles and resting animals to minimize disturbance.
Waikīkī was once an area of royal fishponds and canoe landings; Diamond Head (Lēʻahi) is a volcanic tuff cone that later became a strategic coastal landmark.
What to Bring
Reef-safe sunscreenEssential
Protects skin and the coral reefs; apply before boarding.
Sunglasses with a strapEssential
Reduces glare and keeps eyewear secure on the moving deck.
Light wind layer
Evenings and open-water breezes can be cool, so a thin jacket helps comfort.
Camera or smartphone with waterproof case
Captures underwater views through ports and seascape shots of Diamond Head.
Common Questions
Are marine life sightings guaranteed?
No — sightings depend on ocean conditions and animal behavior; the crew maximizes chances but cannot guarantee encounters.
Is the boat wheelchair or stroller accessible?
The tour notes stroller accessibility and assistance is typically available for limited mobility guests; contact the operator ahead for specific wheelchair needs.
Are there restrooms and water onboard?
Yes, the catamaran has onboard restrooms and complimentary bottled water for the one-hour cruise.
How early should I arrive and where do I meet?
Check-in is 20 minutes before departure at Kewalo Basin Harbor Slip F21 (1009 Ala Moana Blvd); look for the large red sign and the Haleiwa Queen.
Book This Experience
Check AvailabilityDuration
1 hour
Location
Honolulu, Hawaii
Difficulty
easy
Fitness Level
Suitable for most fitness levels; minimal mobility required for boarding but assistance available for guests with limited mobility.
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