When you choose an ocean adventure on Hawaii’s Big Island, where you go matters—but how you get there can completely transform the experience. Sea Paradise combines some of Kona’s most spectacular snorkeling and manta ray encounters with the comfort, space, and stability of the Hoku Nui, its 50-foot luxury sailing catamaran.
Operating on the Kona Coast since 1985, Sea Paradise offers guests more than four decades of local ocean experience. Every tour departs from historic Keauhou Bay aboard the Hoku Nui, giving guests the opportunity to experience Hawaii’s remarkable coastline from a vessel designed around comfort and enjoyment.
Snorkeling the Incredible Waters of Kealakekua Bay
Sea Paradise’s daytime snorkel adventures take guests along the beautiful Kona Coast to the pristine waters of Kealakekua Bay, home to the historic Captain Cook Monument and some of the Big Island’s most celebrated snorkeling.
The protected waters of Kealakekua Bay Marine Life Conservation District offer the chance to discover colorful tropical fish, coral reefs, and Hawaii’s fascinating underwater environment. Sea Paradise offers both morning and afternoon snorkeling options, making it easy to fit an ocean adventure into your Big Island vacation.
But the adventure begins long before you enter the water.
The Hoku Nui Makes the Journey Part of the Experience
The Hoku Nui—Hawaiian for “Big Star”—is a 50-foot luxury sailing catamaran featuring a wide twin-hull design that provides greater stability and considerably more room than guests may experience aboard smaller rigid-hull boats. That extra stability can make a noticeable difference for families, first-time snorkelers, and travelers who simply prefer a smoother and more relaxing journey.
There’s room to spread out, enjoy panoramic views of the Kona coastline, and relax beneath shaded seating. The Hoku Nui also features two oversized restrooms/changing rooms, a galley, full bar, freshwater showers, and two wide staircases that make entering and exiting the water easier.
Sea Paradise deliberately limits its tours to 49 guests, providing generous deck space and helping create a comfortable atmosphere throughout the journey.
And on daytime tours, there’s another touch of luxury waiting after your ocean adventure: guests can relax aboard the Hoku Nui and enjoy available local brews, tropical cocktails, mixed drinks, and mocktails while taking in the Kona Coast.
Experience Kona’s Famous Manta Rays
When the sun begins to set, Sea Paradise offers an entirely different adventure.
The Hoku Nui departs Keauhou Bay for Manta Village, where guests have the opportunity to enter the nighttime Pacific and watch magnificent manta rays glide, turn, and feed beneath them.
Kona is home to more than 450 identified manta rays, and Sea Paradise reports an 85–95% year-round manta sighting rate. Sea Paradise also offers its Manta Guarantee, providing eligible guests a complimentary rebooking opportunity when mantas are not seen, subject to the company’s guarantee terms and availability.
The Hoku Nui’s size and stability become especially valuable during a nighttime ocean excursion. Its spacious deck, wide staircases, handrails, and stable twin-hull design provide a comfortable platform as guests prepare to enter the water and again when they return aboard after their manta encounter.
More Than a Boat Ride—It’s Part of Your Hawaiian Adventure
There are many ways to get out on the water in Kona, but not every tour offers the same experience.
With Sea Paradise, the vessel isn’t simply transportation to the snorkeling destination. The Hoku Nui is part of the adventure itself.
From sailing the Kona Coast and snorkeling near the Captain Cook Monument to watching manta rays beneath the nighttime waters of Manta Village, guests experience the Big Island from the comfort of a spacious 50-foot catamaran accompanied by an experienced professional crew.
For more than 40 years, Sea Paradise has shared Kona’s remarkable ocean environment with visitors from around the world. Today, the Hoku Nui brings a luxurious dimension to that tradition—combining adventure, comfort, stability, marine education, and genuine Hawaiian aloha.
Whether your dream Big Island experience is snorkeling among tropical marine life or witnessing giant manta rays beneath the stars, Sea Paradise and the Hoku Nui offer an unforgettable way to experience the waters of Kona.
