Naha Underwater Observation Boat Orca Cruise | A 1-Hour Undersea Stroll in Okinawa Without Getting Wet

Leaving Naha's Harbor, Setting Sail for the Blue Sea

The Orca underwater observation boat cruise is a roughly one-hour glass-bottom boat tour departing from Naha. Thanks to its convenient location within the city, it's easy to fit into your schedule between strolls through Kokusai Street and other city sightseeing.

Once you set sail, the breakwater and lighthouse pass across your view as the boat quickly heads out into the deep blue sea. On deck, feel the sea breeze and sense the vastness of the ocean you're about to peer into.

You can check availability and book via this reservation page.

Arriving at the Point—The Boat Stops on the Water

The boat comes to a stop at a spot near the coral reef, where the undersea observation begins. From the covered deck, you can slowly take in the clouds, blue sky, and the ever-changing colors of the endless sea.

Looking up from near the water's surface, the white hull and yellow roof stand out beautifully against the sky. If you want great photos, this stopped period on deck is your best opportunity.

Descend to the Observation Room and You're Already Undersea

The boat's observation room features glass windows lining both walls, so simply walking down the stairs brings the undersea scenery right in front of you. Since you view it seated on benches by the windows, it's easy to enjoy even if you're not particularly active.

The room glows blue with light filtering through the water, creating an atmosphere like a dimly lit aquarium. Even if snorkeling or diving feels like too much of a challenge, you can observe the underwater world without getting wet.

Schools of Tropical Fish Fill the Window

Beyond the glass, schools of striped tropical fish swim in formation. Seeing Okinawa's marine life—said to number in the hundreds of species—along with the coral reefs, at what feels like arm's length, is the highlight of this cruise.

Sometimes a larger fish will slowly appear among the smaller schools. Many fish move quickly, so it helps to hold your camera close to the window and be ready to shoot.

Looking up the names of the fish you spotted after disembarking is one more way to enjoy the experience.

What to Check Before Booking

• The departure time of your booked sailing and the check-in time, 20 minutes before departure
• The location of the meeting point at the Naha Pier waiting area
• Duration of approximately 50–60 minutes
• Languages supported (Japanese and English)
• That observation points and operations may change depending on weather, sea conditions, and underwater visibility
• Precautions to take beforehand if you're concerned about seasickness
• Cancellation and non-operation conditions
• The latest pricing and availability

Pricing, departure times, and operational details are subject to change. Please check the latest information before booking and on the day of your tour.

In Summary

Boarding the Orca from Naha's harbor, you can enjoy both the sea's surface and its depths in about one hour on this underwater observation cruise.

After leaving the harbor, first enjoy the blue sea from the deck as you head to the observation point. Once the boat stops, head down to the observation room and search for tropical fish and coral reefs through the large glass windows. Being able to peer into the very same waters you were just admiring from the deck—all without leaving the boat—is what makes the Orca special.

There's no need to change into a swimsuit or prepare for snorkeling, making this an easy choice for families with children or those uneasy about swimming. It's perfect for anyone visiting Naha who thinks, "Since I've come all the way to Okinawa, I want to see what's under the water too."