October 9 – 16, 2027

Explore the legendary Sea of Cortez aboard the luxury Nautilus Gallant Lady. Join just 12 guests as we search for whale sharks, sea lions, mobula rays, dolphins, whales, and, if we're lucky, orcas (!!!) while diving one of the world's most spectacular marine ecosystems.

Welcome Aboard

Join us as we venture into the legendary Sea of Cortez aboard the Nautilus Gallant Lady, an intimate luxury expedition yacht designed specifically for divers.

Unlike larger liveaboards, the Gallant Lady accommodates just 12 guests in six spacious ensuite, air-conditioned cabins, creating a relaxed atmosphere where personalized service, uncrowded dive operations, and genuine camaraderie are all part of the experience.

Whether you're watching the sunrise from the top deck, relaxing in the hot tub after a dive, or sharing stories in the sky lounge, you'll quickly discover that the journey is every bit as memorable as the diving itself.

Why October?

October is one of the most exciting times to explore Baja's waters. Warm temperatures, calm seas, and an incredible diversity of marine life make this one of the premier seasons to visit the Sea of Cortez.

Throughout the expedition, we'll explore spectacular dive sites while searching for wildlife including:

• Whale sharks
• Playful sea lions
• Mobula rays
• Dolphins
• Massive schools of fish
• Pilot whales
• Fin whales
• Sperm whales
• And, with a little luck, even orcas

Every Expedition is Unique

One of the greatest advantages of traveling aboard the Gallant Lady is flexibility.

Rather than following a rigid itinerary, the captain and expedition team adjust each day's route based on weather, sea conditions, and the latest wildlife sightings. That means every expedition is unique, giving us the best opportunity to experience the Sea of Cortez at its very best while exploring remote islands, dramatic volcanic reefs, and hidden corners that few divers ever have the chance to visit.

A Mission Blue Hope Spot

This expedition is especially meaningful to us because much of the region we'll be exploring includes Mission Blue Hope Spots, marine areas recognized for their extraordinary biodiversity and critical importance to the health of our oceans.

Mission Blue, founded by legendary oceanographer Dr. Sylvia Earle, works to inspire the protection of these extraordinary places through exploration, education, and conservation.

For us, this journey is about more than incredible diving. It's an opportunity to experience one of the world's most remarkable marine ecosystems while deepening our appreciation for why places like the Sea of Cortez deserve to be protected.

More Than a Dive Trip

Whether you're joining your first Deep Ocean Explore Store expedition or your tenth, this expedition is about more than checking another destination off your bucket list.

It's about traveling with a small community of passionate divers, sharing unforgettable wildlife encounters, and returning home with stories and dive buddies that will last a lifetime.

We hope you'll join us as we discover one of the most extraordinary marine environments on Earth.

Videos

Trip Preview
https://youtu.be/bZymbMxuKqc?si=L42tWwPaVqIpmcBt

Tour the Nautilus Gallant Lady
https://youtu.be/rDpEJH2x4ts?si=1IInvbaAIZbV_RZ6

Reach out to Lauren with any questions Lauren@doermarine.com