Explore the Dominican Republic's Most Spectacular Marine Environments
Wake up on the water and dive the Dominican Republic's most remote reefs, walls, and whale grounds — days of diving, nights under the stars, all from a single floating basecamp.
DIVE DEEPER WITH GRAND BAY OF THE SEA
Experience the ultimate Dominican Republic diving adventure with our exclusive liveaboard expeditions. Grand Bay of the Sea proudly offers premium multi-day journeys to the most pristine and rarely visited waters of the Dominican Republic. Leave the crowds behind and immerse yourself in extraordinary marine environments that can only be accessed by liveaboard vessel.Our professional crew, accommodations, and exceptional dining create the perfect setting for the underwater adventure of a lifetime. Whether you're seeking vibrant coral reefs at Silverbank or majestic humpback whales in Samana Bay, our liveaboard experiences deliver unforgettable memories.
Featured liveaboard routes
Silverbank Expedition
Departing from Sosua - Available June, July & August
Journey to the legendary Silverbank, a remote underwater sanctuary on the northern coast of the Dominican Republic. During summer months, this protected marine reserve offers exceptional diving among pristine coral formations and abundant marine life rarely visited by other divers.
Whale Watching Adventure
Los Haitises to Cayo Levantado - Prime Season Janurary-March
Embark on an extraordinary whale watching journey through Samana Bay's most magical waters. Starting from the lush mangroves and limestone formations of Los Haitises National Park and culminating at the idyllic Cayo Levantado (Bacardi Island), this expedition offers unparalleled opportunities to observe magnificent humpback whales in their natural environment.
Life aboard
Plan your liveaboard adventure
Spaces are limited and seasons are short. Tell us your dates and experience level, and we'll help you plan the trip of a lifetime.
Frequently asked questions
What is a liveaboard dive trip?
A liveaboard is a boat you live on for several days while diving. You sleep, eat, and dive from the same vessel, allowing access to remote sites and multiple dives per day without returning to shore.
Do I need to be an experienced diver?
Most liveaboard routes welcome any certified diver, though some remote or deeper sites are better suited to Advanced Open Water divers. We'll match you to the right trip for your experience level.
When is the best time to go?
The Silverbank Expedition is a summer diving liveaboard, running June through August — it is a diving trip, and no whale watching is done at the Silver Bank. Our separate whale-watching adventure runs during the Dominican Republic's humpback season, January through March. Contact us for current schedules.
What's included in the price?
Liveaboard packages typically include cabin accommodation, all meals, guided dives, tanks, and weights. Equipment rental, nitrox, and gratuities may be additional. Full details are confirmed at booking.
How do I book?
Liveaboard trips are planned in advance with limited spaces. Contact us with your preferred dates and group size, and we'll confirm availability and guide you through reserving your place.