Dive 100 feet below the Pacific in a real 48-passenger submarine departing from downtown Honolulu's harbor area. This isn't some touristy fake sub—you'll cruise past intentionally-sunk Navy vessels and downed aircraft that are now thriving artificial reefs covered in coral and swarming with tropical fish.
The massive portholes give you crystal-clear views as you spot sea turtles resting on shipwrecks, sharks cruising by, eagle rays gliding past, and schools of colorful butterfly fish. It's honestly magical, especially if you're not comfortable snorkeling or diving. Kids absolutely lose their minds over it, and even skeptical adults find themselves glued to the windows. Yes, it's pricier than other Oahu activities, but going 100 feet underwater in a real submarine? That's genuinely once-in-a-lifetime stuff.
💡 Insider Tip
Book the earliest morning departure for the clearest underwater visibility. Sit on the left side facing forward for the best views of the main shipwreck—that's where the sea turtles like to hang out.
Daily departures 9 AM – 3 PM
From $145 adult, $65 child
Meet at Hilton Hawaiian Village pier
Morning for clearest water visibility
