Best results for Water Activities in Mililani, HI

Choose a one- or two-tank certified boat dive in Honolulu

Book a private sunset cruise in Maunalua Bay and bring your own drinks

Try scuba diving on Oahu with 1–2 shallow reef dives, no experience needed

Snorkel Hanauma Bay with roundtrip Waikiki shuttle and gear rental

Swim in deep water with bottlenose dolphins and enjoy full-day admission to Sea Life Park

Snorkel with whitetip reef sharks at Sea Life Park Hawai‘i

Experience a full day of AquaVenture thrills and lagoon paddling in one easy bundle

Seasonal 4:00pm private whale watch with hydrophone

Sail and snorkel off Waikiki with drinks, snacks, and crew on a couples-only 2-hour charter

Private whale watch and snorkel charter for up to 6 guests from Ko Olina Marina

Cruise from Haleiwa in a group of six to spot migrating humpback whales

All gear included for a two-tank dive suitable for any experience level

Spot whales off Oahu’s North Shore on a scenic boat ride

Discover Waikiki's underwater world on a two-tank dive with all gear included.

Swim with sharks on a cage-free snorkel free dive in a small group

Learn to surf in Haleiwa with 2 hours of instruction

Rent a paddleboard or kayak at Anahulu Stream in Haleiwa

Explore multiple reefs with marine biologists and enjoy a turtle sighting guarantee on an afternoon snorkel.

Spot humpback whales, then snorkel with turtles and fish in a small group

Witness winter humpbacks at sunset on a small-group biologist-led cruise.

Learn to surf with expert instructors; all skill levels welcome

Explore Oahu’s wrecks and reefs on a guided three-tank dive with premium gear included

Dive with Oahu ocean lovers and join a family-style potluck

Sail out for close-up views of Honolulu’s Friday night fireworks