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    • Home
    • Boat Briefing
    • Waivers
    • Breathing Gases
    • The Boat
    • The Crew
    • The Wrecks
    • Pictures
    • Training
  • Home
  • Boat Briefing
  • Waivers
  • Breathing Gases
  • The Boat
  • The Crew
  • The Wrecks
  • Pictures
  • Training
Below the Grade Scuba

Elevate your Great Lakes diving

Elevate your Great Lakes divingElevate your Great Lakes diving

About Us

The Best Mixes at the Best Prices

The only diver lift in the Great Lakes

The only diver lift in the Great Lakes

Any mix and nearly any pressure. We have banked gases available at the shop. Our mobile fill station can provide air, nitrox, trimix, and oxygen. In some locations, we can fill directly on the boat.

The only diver lift in the Great Lakes

The only diver lift in the Great Lakes

The only diver lift in the Great Lakes

Our new dive boat, The Ho-Hum, is the fastest dive boat on the lakes. Equipped with twin outboards, a SeaKeeper,  and the first diver elevator in the Great Lakes.

Rentals available, OC and CC

The only diver lift in the Great Lakes

Rentals available, OC and CC

We have what you need to get in the water. Doubles, bailouts, stages, deco bottles, scooters, even rebreathers.

Charter Schedule

Charters

Charters

Boat is rated for six divers. Pricing is for the full boat. Fuel surcharge may apply.

Recreational Charters

$825

Either morning or afternoon half day charter.

Technical Charters

$1000

Full day charter. 

Locations

Ask

While we primarily operate in Michigan's thumb on Lake Huron, the boat is on a trailer and can go where you want to dive. Just tell us what you want to see. 

Rentals

Ask

If you need tanks or equipment for your charter, we can handle that. We have most common tanks and sorb available.

Booking and Payments

  • $100 per day non-refundable deposit due at time of booking.
  • 50% of the charter cost is due 90 days before the scheduled start. The remainder is due when the charter runs.
  • Refunds will be issued for mechanical and weather cancellations.
  • Payments can be made with cash, check, PayPal, Venmo, gold, silver, or interesting trades. 


Boat equipped with emergency oxygen, AED, First Aid Kit, and a Hippopotamus for snuggling as needed.

Captains and crew

Captain Lindsay

Captain Lindsay

Captain Lindsay

Lindsay holds a Coast Guard 50 ton Masters license. She is also an active technical diver and splits her time between the Great Lakes and Mexican Caves. You will usually find Lindsay being an actual Captain and running the boat.

Learn more

Captain Tracy

Captain Lindsay

Captain Lindsay

Tracy holds a 50 ton Masters license. He is an active technical diver to all levels, open and closed circuit.  He is a technical instructor on open circuit and rebreathers. Tracy splits his time between the Great Lakes, Florida, and Mexico. You can usually find him on the boat deck whining about being cold.

Learn more

Hippo Potamus

Captain Lindsay

Hippo Potamus

Miss Potamus runs the show. She appreciates pats, pets, snuggles, and the occasional boop. She can usually be found asleep in the sun or directly in your lap. Hippo works for treats and provides complimentary fur to help keep you warm on your dives.

Hippo is capable of supervising from afar. Let us know ahead of time if you have allergies and she needs to stay on the dock.

Learn more

Contact Us

Send us a note and we will get back to you as soon as we are able.

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Call anytime (937)61 SCUBA

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Below the Grade Scuba

Hours

Mon

05:00 pm – 09:00 pm

Tue

05:00 pm – 09:00 pm

Wed

05:00 pm – 09:00 pm

Thu

05:00 pm – 09:00 pm

Fri

By Appointment

Sat

By Appointment

Sun

By Appointment

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Charter booking fine print

$100 puts your dates on the calendar. 50% of the charter cost is due 90 days before the charter starts. The remainder is due at the time of charter. Weather days called by the captain are no cost. $100 deposit is non-refundable.

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  • Boat Briefing
  • Waivers
  • Breathing Gases
  • The Boat
  • The Crew
  • The Wrecks
  • Pictures
  • Training

No More Paper Waivers!

Our liability and medical waivers are now online.

Online waivers