Best 855 things to do in Mililani, HI

Cruise from Waikiki to watch Friday night fireworks with glass-bottom underwater light viewing

Sail past Diamond Head on a private 2-hour sunset yacht cruise

Fish offshore from a sailboat near Diamond Head

Sail on a private yacht near Waikiki and look for humpback whales

Cruise from Waikiki and snorkel with a friendly group

Cruise the Waianae coast with dolphin swim, snorkel gear, lunch, and a water slide

Snorkel Turtle Canyon with gear included and Diamond Head views

Watch the sun dip behind Diamond Head while naturalist guides share marine life insights

Snorkel by boat in Honolulu with gear and light snacks included

Cruise Oahu’s west coast to watch dolphins, snorkel, and use the water slide

Ride a speedboat off Oahu’s west side and swim with wild dolphins

Rent the Dolphin Warrior for a 2- or 3-hour ocean safari for up to 20 people

Cruise Honolulu’s coastline at sunset with Friday fireworks option

Guided 2-tank shallow reef dive off Waikiki with gear included

Explore Oahu’s reefs after dark with a guided dive and provided flashlights

1-tank offshore shore dive on Oahu’s west side (beginners or certified)

Guided 2-tank boat dive to a shipwreck and lava tube reef

Guided 2-tank boat dive off West Oahu with gear included

Seasonal Electric Beach shore dive for beginners or certified divers

Guided 2-tank boat dive to an Oahu shipwreck and reef

Shore scuba dive at Magic Island Park, with options for beginners or certified divers

Seasonal Shark’s Cove shore dive for beginners and certified divers

Boat dive the YO-257 and San Pedro wrecks, then a 60 ft reef dive

Private 3.5-hour Waikiki cruise with snorkeling gear and fresh poké for up to 6 guests