Isle Royale Technical Trimix Liveaboard • Lake Superior • Deep Great Lakes Wreck Expedition

This is not an ordinary dive trip. This is an expedition for technical and trimix divers who want the absolute peak of cold-water wreck diving. The Isle Royale Technical Trimix Liveaboard takes a small team of high-level divers deep into Lake Superior for five days of exploration on some of the most dramatic and historically significant shipwrecks in North America. Preserved by cold freshwater and protected by the remoteness of a national park, these wrecks offer scale, detail, and atmosphere that few divers in the world ever experience.

The Pinnacle of Deep Great Lakes Wreck Diving

Isle Royale is legendary among technical divers for its combination of massive wrecks, extraordinary preservation, and depth. Descents range from 120 ft to 250 ft, with towering hulls, machinery, and superstructure emerging from the blue as you drop. These are real working ships — freighters, steamers, and passenger vessels that sailed one of the most unforgiving stretches of water in the world. Seeing them materialize during descent is a moment every technical diver remembers for life.

What the Trip Includes

This liveaboard is structured for efficiency, safety, and maximum time on deep wrecks. The expedition package includes:

• Five-day technical/trimix liveaboard in Isle Royale

• Private charter with individual bunk space for each diver

• Multiple deep wreck dives daily (conditions permitting)

• Diluent and oxygen fills included

• Lodging and meals on board

• Snacks and drinks between dives

• Trip shirt

• Support and leadership from experienced Great Lakes technical staff

• Optional tank and weight rental available

Open-circuit divers and any bailout refills are the responsibility of the diver.

Certification & Skill Requirements

Due to depth, remoteness, and complexity, this liveaboard is restricted to:

• Trimix certification or equivalent CCR certification rated for 250 ft

Divers must demonstrate solid capability in:

• Deep cold-water descents

• Gas planning and redundancy

• Deco procedures and ascent control

• Task loading and situational awareness

• Team-based communication and role clarity

Not sure if your certification qualifies? Contact us before registering.

Why Isle Royale Matters

There are very few places in the world where technical divers can explore wrecks of this size and preservation at these depths in freshwater. Isle Royale delivers:

• Legendary ships with dramatic loss histories

• Cold water that protects steel and machinery untouched for decades

• Complete separation from recreational pressure and casual traffic

• A true expedition feel far offshore in a wilderness national park

For many technical divers, this trip becomes one of the most defining achievements of their diving careers.

A True Technical Expedition

This liveaboard develops a rhythm — dive planning, gas strategy, equipment checks, decompression discipline, recovery, analysis, refinement, repeat. Underwater, the focus is absolute; on deck, the camaraderie is strong, respectful, and built around shared purpose. It is a rare space where every diver is committed, prepared, and motivated.

The Team Dynamic

Trips of this level demand the right divers — and this expedition attracts them. Whether you arrive with teammates or solo, you will be diving with people who take preparation, communication, and professionalism seriously. The shared mindset elevates safety and makes the experience exceptional.

Reserve Your Spot

Because of depth, safety protocols, and limited liveaboard capacity, only a small number of divers can join this expedition, and spaces typically fill immediately each season. Once full, registration remains closed until the next cycle.

If you’re ready for a week of disciplined, purposeful deep wreck diving in one of the most extraordinary cold-water environments on Earth — and for an expedition you will remember for the rest of your life — secure your space now. Isle Royale is the summit of Great Lakes technical diving.