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Great Lakes Shipwreck Preservation Society
Dedicated to Preserving our Shipwrecks and Maritime History
"From Prevention to Preservation"
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Website Updated

GLSPS Annual Fundraiser!!

UMSAT Show Website

If we are allowed to have a physical Show
The Date and Venue for 2021 UMSAT Show!!

April 9 - 10, 2021

Friday Night at the Movies
7:00 to 10:00 PM

Saturday, 9:00 AM to 6:00 PM
Main Show

(Meet and Greet Party with Food and Beverages)
At The Holiday Inn Hospitality Room
(Next Door to Jimmy's)
7:00 PM to 11:00 PM


If we have a Virtual Show Only
The dates would be

April 6 - 10, 2021

There will be one speaker each night 
starting at 7:00 PM

Saturday will have two speakers and
the GLSPS Awards Event 
Stay tuned for the Lineup of Speakers for 2021

For more information on the upcoming 2021 UMSAT Show, please visit

If you are interested in joining the UMSAT Show Planning Committee, please email us at

Or, contact Mary Lillimo at "Show Chairperson", or Phil Kerber, "President", at

Here are the Links to Important Exhibitors Documents
  UMSAT Booth Table Layout at Jimmy's Event Center

We are always looking for speakers that would like to present a great topic about their scuba diving or adventure travel experiences.

Please let us know if you, or anyone you know, would like to be a star and speak at a future UMSAT Show!

Lake Superior Magazine Logo 2x1
Check out the most beautiful magazine ever produced in Northern Minnesota!

GLSPS Project Sponsors

Air Down There Scuba offers free air fills and special pricing on rental equipment while participating in GLSPS projects. Required to show GLSPS Membership Card! 
Thank you, Scott and Tracy!

Aquaventure Dive and Photo Center offers free air fills and special pricing on rental equipment while participating in GLSPS projects. You will be required to show your GLSPS Membership Card.  They have also loaned us a GoPro HD video camera for a few projects. Thank you, Steve and Jolene!

Videos produced by Steve at Aquaventure Dive and Photo Center filmed in Lake Michigan on a Milwaukee charter trip. Click on their above logo for information to join them on a charter to visit these shipwrecks.
Prins Willem
The Dredge 906

HomeHCMC Hyperbaric Chamber Tour

 GLSPS Offers Free Tour to the "New" HCMC  Hyperbaric Chamber Facilities in Minneapolis MN.

Please join the GLSPS for a "Free" Tour

To learn more about the Hyperbaric Chamber, please click on Link button to obtain the brochures.

Two separate dates are available, April 4th and 11th at 2:00 PM to 4:00 PM.

For more information and Register to reserve your spot, please click on the link that would
most fit your schedule. 


This tour will fill up fast so don't hesitate to Register.

This event is offered for Members and their Companions

Hope to see you there,

GLSPS Board of Directors and Safety Committee 


HCMC Hyperbaric Chamber Facilities Tours

April 4 & 11, 2013

Closing Report

Inside the HCMC Hyperbaric Chamber
Photo By Bob Nelson

Outside the HCMC Hyperbaric Chamber Facilities
Photo By Bob Nelson

GLSPS visits the HCMC Center for Hyperbaric Medicine

Many GLSPS members and guests took the opportunity  to visit the HCMC Hyperbaric Chamber without actually needing it for Medical reasons.

GLSPS sponsored two tours of the new HCMC Hyperbaric Chamber Facilities in Minneapolis MN. Richard Hagen set up the tours with the HCMC hyperbaric medical staff: Dr. Atkins and two chamber operators Mark Pullis and Joe Harris. All were very gracious and knowledgeable, spending much time explaining, and answering our many questions. About 18 GLSPS members and guests did the tour. All were impressed and enjoyed the tour. Two for the GLSPS members touring had been treated here for decompression sickness before the new chamber was installed.
HCMC has been providing hyperbaric oxygen for patient care and research continuously since 1964. HCMC is one of a very small number of institutions in the US providing 24/7 availability of hyperbaric oxygen for emergency patients.

The new state-of-the-art Center for Hyperbaric Medicine opened in 2012 and is comprised of three multiplace chambers and one monoplace chamber. Hyperbaric oxygen therapy (HBO) is a specialized medical treatment in which the patient breathes 100 percent oxygen while inside a chamber at increased atmospheric pressure. Hyperbaric oxygen is used for specific medical conditions. HBO has long been recognized as vital in the resolution of critical medical conditions such as gas gangrene, carbon monoxide poisoning, cerebral arterial gas embolism, and decompression sickness. It is also an important adjunctive therapy for other emergent conditions, such as necrotizing fasciitis, sudden sensorineural hearing loss, and compromised skin flaps or grafts, and for chronic medical conditions such as refractory osteomyelitis, osteoradionecrosis, delayed soft tissue radiation injury, and Wagner 3 or greater foot ulcers in diabetic patients.

Bob Nelson
GLSPS Board of Director